Headache, Fever, Nausea, Vomiting. Given Toradol Shot And Tylendo. Done CT Scan And Spinal Tap. Is It Lymes Disease?

on 7-3 i went home from work with what i thought was a mirgaine, the maxalt melts that i normally take didn't help it. It continued to the next day and 3 maxalt melts later. on 7-4 i went to locate ER, I was running a fever (102.4), nausea and vomitting, and still had headache.. They gave me a toridol shot, w/phenigran along with 975gm of tylendo, sorry about spelling. then sent me home, back to ER next day same problems this time 1 liter of fluid, phenigran and motrin and tylendo again. 7-5,6 I just took motrin & tylendo for fever, the headache was still there. So on 7-7 i could not take it anymore. This time i had a fever of (103.6), headache, nausea & vomitting. They need Chem 12, urine, CT of my head and that was all good.. So they did a spinal tap, which was good also. 2 liters of fluid and several Dilatid shots that only took the pain in my head way for about 45 minutes. then it was back full force. On monday i started having swelling in legs, feet and toes, I went to see family doctor on tuesday 7-9 he did blood cultures, mono, and lymes disease. on wednesday lab work showed sed rate was up and CRP also up. so i did a BNP it was 125, so they ordered a echo cardiogram for tomorrow. I did take 3 - Lasix pills over the weekend. they are starting to go down.. I am so unsure as to what is wrong, i am feeling so better. I am taking Doxycillian and 800gm of motrin 3 times a day. Doc said today that if it is not lymes, then he thinks it is polyarthirist. WHAT DO YOU THINK???