Doxycycline
"8/28/17 went to ER with Severe & unusual headache (with previous/ current health issues ), and wanted to rule out stroke (as I was diagnosed in 2013 with 'TIA' a mini stroke). After tests a stroke was ruled out but told I had Bronchitis. Hmm, never got a answer on how they came up with that conclusion & was given a RX for Doxycycl HYC 100MG ( 2X's a day for 10 day's ) after 1st days dose Wow! The nausea, Even More Severe headache & body  pain, etc... & the headache was even more Severely Pounding than when I 1st went into ER ! 2days into taking this STUFF, this Drug! I searched the web for info & found there's Way too many severe & serious Side Effects for me  that outweigh any possible benefits !
So I'm done ! I'm through with this drug too!"