Headaches from hell

S

20+4 high risk and for the past week have had headaches from hell that last hours, make you nauseous and wishing you could vomit but can’t. The nausea then gets worse as the hours go on. On blood thinners so not allowed to take much of anything. I’ve drank tons of water with no improvement. So miserable. Anyone else or any suggestions? I’ve tried the hot shower and everything it just won’t let up this whole week.