Hello Doctor - For The Past 2 Weeks, I Have

Hello Doctor - For the past 2 weeks, I have been experiencing dizziness, but only when switching positions (i.e. rolling over) after laying down. Kind of like having the bed spins without the benefit of being hammered. Also, slight short-term dizziness occurs when I sit up to get out of bed. Once up, dizziness does not occur for the rest of the day.
I had a heart attack 2 years ago, smoked a pack a day for 38 years before quitting 2 years ago, and have 2 stents.
Last chest x-ray was about 18 months ago showing early stage emphysema but no other abnormailites.
I am 57 years old, height 6' 0", weght 187 lbs.
Blood pressure typically ~130/80, blood sugar a little high but not diabetic.
Medications include Repatha and Prilosec.
I am a little concerned about the dizziness.