Chest pain on the left side. someone help me out here? or could it be from acid? wat does acid feel like ?

I woke up this morning and when standing up, I felt this sharp chest pain on the left side and been getting thru out the day. Kinda worried might b heart attack symptom. I'm 5'7, 120 lbs, male. cardiologists or knowledgeable people familiar with this is appreciated :)