7.5 is kicking my booty

I’ve been on Zep since Jan 1 and I did a month of 2.5 and a month of 5. I took my first 7.5 shot on Tuesday night, and normally I have a slight headache the next morning. Yesterday I was DOWN for the count. Migraine, nausea, vomiting, tiredness. Luckily I was off from work but I’m worry about next week since I won’t be.

Does this happen to a lot of people who go up to 7.5? I expected this with jumping to 5 since it was doubling but WOOF