There's honestly no way to really describe this feeling, but I'll try my best to explain. I've done this for years and can never find an answer as to what it could be. Whenever I'm trying to fall asleep I get shortness of breath. It almost feels like I'm suffocating and I can't get a deep enough breath in. My entire body also gets these weird indescribable tingling/twitching sensations. I can't lay still long enough to go to sleep because about every 5-10 seconds I get that weird feeling and it makes me have to move around. This doesn't happen to me every night, only occasionally. It seems like it happens the most when I take sleeping aids or if I'm really emotionally distraught. I was literally awake ALL NIGHT last night because of this and I still feel like I'm suffocating today even. Last night before I went to bed, I was having a really rough night. I sat on the couch and cried for hours. I was really depressed and honestly just wanted to die. I took some sleeping meds at around 2:00am, then once I layed down I started getting those weird feelings. I am diagnosed with anxiety and bi-polar. Could that be what is causing this? Should I tell my doctor?