Is this normal...?

I went back to my neurologist last week for a follow-up. For a bit of background, I am 19F and was suffering from severe migraine (having one every day - fairly severe with regard to pain). I was put on Ajovy and topiramate for prevention and Nurtec for abortive therapy. This regimen has decreased my migraines to 15 a month. When I told my neuro this, he seemed satisfied with my progress and didn't really know what else we could do; he actually said we could just stop tweaking the therapy and just continue with what we have. He then left it up to me, and I said I would like to get below 15/month (given this is still technically chronic status and ruining my life), so he put me on venlafaxine and said if it makes things worse just stop and continue with just Ajovy and topiramate. I am very frustrated right now I feel like I have come so far, yet I am still so far. I know I just started the venlafaxine the other day, but it is making me feel horrible (dizzy, shaking, nauseous, anyone else?), but I don't want to stop I want to give it a fighting chance. I don't know if I should get a second opinion or if I should just let it ride, but I feel like I'm just going in circles...