Undiagnosed/persistent headache, hopeless

Background - Went to Mexico in beginning of may and came back with rotavirus (headache didn’t start until next month). On June 3rd, had a sudden headache started out of nowhere (not prone to headache) that gradually got worse through the day and days after. It felt similar to a bad tension headache with severe pressure in my head with nausea and hot flashes. Prior to the headache, I randomly had days of nausea, abdominal pain, diarrhea, fever and chills. The headache persisted for a wee before going to the hospital and no meds helped compete unresponsive. I had every test CT, MRI, EEG, umber puncture but nothing abnormal found. They said I had a refractory migraine or abnormal migraine. Went to neuros, headache specialist, pcp, ER, and no one can figure it out. Then I got tested for lyme and I had an abnormal result - I tested positive for igg 41, 45, 66, and 39 and I’m waiting to get test back to see if I’m positive for co-infections. Other than that I have no idea what else is could be besides lyme. Many people thin that my headache is from lyme but I’m not sure. Very frustrating to not get answers. I also have had elevated liver enzymes and autonomic dysfunction symptoms such as fast heartbeat, lightheaded, and low blood pressure, nausea, but my main symptom has been this headache. Not sure if it could be another tic-borne ness or parasite?

Headache description for reference:
Headache constantly changes with sensations of air balloon feeling, brain tingling/tickling inside my forehead, head feels full or stuffy like theres a big cloud inside my head/fuzzy around my brain, weird sensations in my head some crawling feeling, gets worse if I try to move my forehead around sometimes with sharp stabs; most of the time I have pressure and strain/tension in my head and deep muscle tension, brain freeze/ice pic headache type and deep tissue pain soreness spots everywhere, painful spots on forehead when pressing on it, muscular or vascular type of headache or bruising/hurts to touch, get bad waves of pain and it moves around my head a lot, sometimes its not painful but feels really strange, occasional brain nausea, zaps shooting pain and stabs all over nerves, vibration or buzzing sensation in head, pain on top of head (pain is mainly on forehead, sometimes temples, and top of head)

I know it's been a couple months, but how did your Lyme testing go? Did you get those other tests too? (forget the names, I think one is babesiosis, or something like that).
I'm sure they've done brain and neck imaging, right?
How old are you? When I started going through menopause in my late 40's, I was getting migraines every other day. It was awful. In retrospect, I realized that being on a proton pump inhibitor during that time probably caused a lot of them. I was on it for 5 years, which I shouldn't have been. Towards the end of menopause (I'm almost 73 and still not sure it has ever ended! haha), I stopped the proton pump inhibitor and was put on a little blood pressure med and the migraines really eased up. Later when I had more reflux, I tried a proton pump inhibitor again, and sure enough, got a bad headache. So make sure you're not on a med that might be causing it. I would be interested in hearing if anything helped you yet, and if you discovered you did have Lyme. I went through a period of thinking I had Lyme. The symptoms are pretty similar to FMS, but the tests I had were always negative. But if you are still having problems, be sure to get checked for those 2 other illnesses that tend to appear with Lyme.