Sharp Pain in left side of mid back?

I had the stomach flu about two days ago, and I didn’t eat or drink anything because I would just throw it up. I haven’t eaten or drank anything since then. Except maybe 3-4 water bottles because everything else seems to make me sick. Yesterday my sides hurt but I was assuming that was just because I was throwing... show more I had the stomach flu about two days ago, and I didn’t eat or drink anything because I would just throw it up. I haven’t eaten or drank anything since then. Except maybe 3-4 water bottles because everything else seems to make me sick. Yesterday my sides hurt but I was assuming that was just because I was throwing up so much the previous day. Now today, I have a very sharp pain in my left mid back that comes in waves and it hurts a f*** ton. I would prefer to not go to the hospital until it’s absolutely nessesary. I just want to know if I should be worried or not or if it has anything to do with the fact I had the stomach. Flu a couple days ago. Thank you
0