Feeling sick in the morning not pregnant?

So this has been going on for 4 years non-stop. It's pretty much a routine now. I wake up, 2 minutes later I feel very nauseous, followed by a racing heart. I lay back down and one hour later I feel better. Then I'm able to eat and move around. On a very bad morning I get those two symptoms plus a nasty headache and trouble breathing, and need to go back to sleep for a few hours then I feel better. I'm scared that it could be something serious but I'm not sure.