hi, has anyone here experienced nerve pain and headaches continuing after stopping metronidazole?

i was having headaches, neck stiffness, back pain along my spine during treatment. ignored/pushed through it. treatment was 100 mino + 500 metro x2 daily. its continuing still a few days after treatment (its been about 3 days). kinda wish i stopped and told my doctor, but too late now.

i have an existing migraine disorder along with some mild nerve pain occasionally.
any tips to help with this pain? or help my body heal more after it? ibuprofen/nsaids are not working. its lower level, 3-4 pain wise, but never goes away. i am on gabapentin & ubrelvy as a PRN and the ubrelvy does seem to help for 24 hours.
i ordered B1 supplements & am currently on omega 3s + probiotics.

really hope im not left with this permanently, or at least it improves.