Independent 10 month old, yoga

Working through some really interesting feelings right now. At 10 months Frederick has become fiercely independent at times. he hasn't eaten at night for the past three days. He also has a much harder time eating a complete meal of nursing without getting distracted. While some might call me lucky others might call me lost. Is there anyone out there who can relate? I feel like he doesn't need me anymore...well as much. I'm having a hard time understanding my new role. Today I spent time at my new yoga studio and absolutely loved it but a) felt guilty for being away and b) really really missed him. While at yoga I had a few great thoughts...that he'll still need me in other ways (but it doesn't make it easier quick yet) and also that my body is so important. It is the key for me. It is essential for Eternal Life and eternal happiness. I believe my role as mother is the most important on this earth and my body is how I become a mother. I need to do everything I can to take care of my body so that I can continue to have healthy pregnancies and births and the energy to raise my children. I'm still working on cutting out things but I've loved working out to Zumba and other cardio stuff as well as an work outs and yoga. (baby mama is my Fav). I have seen results and will continue to. Some people just lose their baby weight right away and I think that's so awesome. But my body takes it slow. It will be around a year that it takes me to get back to normal but that's okay! Well down to a size I'm happy with anyway.
Another question: how do I make sure Frederick is going to get a the nutrition he needs if he's not nursing as much throughout the day? Time to hit the books. I'll start at La Leche League and the American Academy of Pediatrics.

Random stuff about us:
I'm a bracelet, earring, etc making machine. I'll make you anything you need.
We're obsessed with Pretty Little Liars. BUT DON'T SAY ANYTHING!!! We aren't caught up yet!
We went to Costco just for the samples today.

If its not broken don't fix it.

We have co-slept since Frederick's birth and for me and all of us that has been how we have gotten the most sleep and have felt the safest. Just recently we have really made up the nursery and I started thinking that maybe it was time to have him sleep in his own bed. He naps in there but not through the night. It would be hard but we would try to have him sleep there. We'd (I'd) be consistent and after a while it (im not sure what exactly) would work. The problem: he still eats at night (and neither of us are interested in weaning any time soon). So he has to wake fully and cry hard to wake me (I would wake in seconds), completely out of it, stumble into his room and either nurse him there and fall asleep resulting in a hurt back and me not in my bed, which defeats the purpose, or I brought him in our bed. Either way he and I got very little sleep. And Collin too because I'd complain to him. A week and a half of no sleep and we both have gotten really cranky and I've been feeling some depression. I felt all wrong. I started over thinking everything and feeling very alone in every way. Then last night I went to a la leche league meeting and got some good advice. Nichelle, my doctor who delivered him, the lll leader, and several experienced moms asked, if it isn't broken why was i trying to fix it? If we all got plenty of sleep before, I had lots of energy, Fred was confident, growing and happy, i got along better with Collin because I wasn't passive-aggressively mad at him for being able to sleep through most anything, why was I trying to change things??? I realized I wasn't ready to stop co sleeping yet. And he definitely isn't. He is going through major separation anxiety right now. Only wants me. And instead of trying to get away from it I want to embrace it! Soon enough he will be older and excited about his own room and independence. He is majorly teething and growing like crazy. And he is eating all the time-not because he isn't getting enough but because he is working on major motor skills (he walked 3 steps in a row yesterday) and using every muscle all the time and is trying to get my milk supply up!
It is amazing to get some clarity and remember that I'm doing these things because they work for me and my family. I love support groups!