Hi and welcome!
I believe you and don't think you're a hypochondriac at all.
JMHO, I think you need to get checked out by a doctor soon. You are the expert on your body, and if you feel like something is way off, you may need to get to the ER. How long has it been since you have been to the doctor?
You may need to get a good workup again. If you decide to wait and not go to the ER, write a brief, concise timeline of your symptoms. It could be that the Lyme is still there, or you could have something else. Unfortunately, just because one has had one condition doesn't mean one can't get something else. I know it is difficult, yet try to be calm, clear, and specific when describing what is happening.
Best of luck. I know how scary these symptoms can be.
Hugs,
Minnie
You sound just like many other late stage Lyme patients. It sounds like you might be experiencing a relapse, or perhaps were reinfected. Please come post on the Lyme forum. There are experienced people there who can help you find a good doctor.