When to go to L&D

I haven't been feeling well these last couple of days. I've been experiencing fatigue, hot flashes and weakness. I can't stand for too long without getting dizzy and tired. I'm 33 weeks and 6 days the baby is moving pretty good I have GD with normal sugar levels. I drink nothing but water it's too hot for anything else. My mom suggested going to L&D but idk if this is that serious. Once I start experiencing these symptoms I turn my AC down, turn two fans on and just rest. It subsides a little but it's basically been on and off these past couple of days. If this serious enough to go in if not what is just in case?

I called my doctor and left a message it is late so I may not get a response right away.

Update: Currently in L&D I have low blood pressure otherwise everything is fine. Baby has hiccups and nurse has to chase her to find a heartbeat.

Update: My hemoglobin and platelet count is low.