Congrats on your sober time gms. I think if you give it time you'll start to notice improvements. Keep in mind alcohol also depletes your body of essential nutrients as well as screws up your digestive system, inhibiting your ability to replenish those nutrients. It's going to take quite some time for those systems to balance back out.
I drank heavily for the better part of 12 years and am now in my mid-thirties. Through it all I've always kept my body strong and otherwise healthy. At 7 months sober, I am just now starting to feel normal again. The first 5-6 months my body was all over the place (granted, I was fighting through some serious alcohol-induced health issues for a lot of that time). Sleep, energy, digestion, my ability to think clearly and retain information -- it was all out of whack. But I'm finally starting to feel a sense of equilibrium again.
Be patient, stay the course, and take care of yourself. Things will get better.