Last night I woke up twice to use the restroom and each time I felt my heart beat only on the left side of my head and it was beyond painful. I also got dizzy and my vision faded both time, so I assumed I just got up too fast and went back to sleep. I woke up with a very mild headache so I thought it was gone but I was laying on the couch and sat up and the same thing happened, only this time it’s also in my left eyeball and it’s still just throbbing even after laying down. I feel as if my eyeball is going to pop out. Is this just a migraine or something more serious? Sorry if this is a dumb question I just want to be sure.

I messaged my doctor but it’s 1104am and they close at noon.