Exercise helps me greatly! I'd be lost without it, with or without meds. My mood improves a lot from it. I especially enjoy running while listening to music I enjoy and lifting light weights. The bad thing is, if my workout gets disturbed and I have to stop for whatever reason or don't get to go when I planned to, I get very, very anxious from NOT going, and quite upset. I remember one time in particular, I was feeling anxious from the start, so I went for a run. I stepped wrong and twisted my ankle and had to stop to prevent it from becoming anything worse... I then had increased anxiety! I also love yoga and pilates for days when I'm very tired, yet anxious. It's great for relaxing the mind.
I am unfortunately the opposite about SSRI's... they make me extremely tired and I sleep just fine with them, but I always feel like I didn't get any sleep! I'll sleep nonstop for the full night and not wake up, yet I'm still exhausted. It's frustrating being so tired all the time! I stopped taking my SSRI's and only have Xanax to take as needed (no side effects from it for me). I am soon going to start Wellbutrin, but I do know that it has a possibility of increasing my anxiety as well, so it will all be trial and error.
I use exercise but until I finish my workouts, I'm tense & anxiety-ridden, so it is a trade off til I finish. I get very nervous before lifting weights for example, as I worry I'll reinjure my back or drive my pulse too high & have a heart attack trying so hard to stay in shape, etc. It is bizarre to be me but it is the way I truly feel. It is not a pleasant feeling when it occurs though.