Feeling tired, difficulty breathing, feeling weird

Keita77

I have more information on my other questions about what happened, but here is how I'm feeling currently.
I'm tired (keep yawning). I fell asleep at like 10:30 pm, awoke at like 3 am, has a bit of difficulty breathing, couldn't fall back to sleep until like 6-7 am, awoke at around 4 pm and here I am, at 6:30 pm.
I've been having difficulty breathing when I'd lay down for a few days, I've been feeling weird ever since I cut my arm (and surgery, etc).
Like I said, more details are on my other questions, please take a look.

I don't know. I'm going to the hand therapy doctor tomorrow to check on my arm.

Right now I feel sickish, a bit weak, tired, difficulty breathing, I'm hungry but don't really feel like eating, same with drinking.

I must say, my sleeping schedule and the way I eat isn't the greatest, but I'm scared now. I also feel out of it and a bit lightheaded. Also I have like bites over my body, which don't itch anymore and are healing. I sometimes have a twitch or something, but not really often. My legs feel tired and weak.
A slight headache and things look /feel weird.
How can I feel strong/healthy again?
Any advice? Thanks everyone.