Stabbing pain in stomach

Lex

28 weeks and 5 days. The last 3 days I’ve had this sharp pain in my left side of my stomach. It starts only when I drink something, and once I have it, it won’t go away unless I stop drinking for hours which I am in Texas heat so I’m constantly drinking water. Feels like a hot poker is searing my skin. No relation to when my baby moves. Anyone have this problem??