About 2 days ago i hyperventilated, no suprise, it happens with panic attacks. But over the last 2 weeks it's been happening more frequently ,at least once every other day. But this time the feeling of not being able to get enough air into my lungs has remained constant for 3 days now....Clearly i'm breathing properly, i'm still alive to type this. But it's so uncomfortable. I'm constantly aware of my breathing and breathing normally doesn't feel satisfying. I can still take deep breaths when i need to. My chest doesn't feel congested and i don't have an unusual cough. At this point it's not making so much anxious anymore as much as it's just very uncomfortable and inconvenient. It seems worse when i stand up or when i lay on my left side, so sleeping has been a challenge, I've tried belly breathing exercises, soaking in a hot bath to relax my muscles, meditation etc... But the feeling remains. And today I've developed an absolutely wretched headache. I'm quite concerned. I had an xray, an ECG and bloodwork exactly 2 weeks ago today and everything was totally normal. Could something serious have developed in that short of a time span? Is this all in my head? Any advice on what to do? About me: I'm 24, 180lbs, i'm a smoker and i'm basically crippled from an accident i had a while back so exercising is very limited as my knees are essentially destroyed.. I've hyperventilated before and when i do i usually feel the after effects for a few hours then it goes away. Is this normal? Does anyone else suffer this ? Anybody have a solution cause i'm all out of options for trying to get rid of the feeling, i've tried everything i can think of.