Hello Doc, Symptoms: Started Yesterday With Dizziness Bench Pressing 2

Hello Doc,
Symptoms: started yesterday with dizziness bench pressing 2 20lb dumbbells at 6 reps! now light headed on standing in the AM, with some confusion.
I'm a 69 year old 5'8, 205lb male. A1c 205' 135/85bp, 89 bpm. Taking 10mg hdrochlorothiazide, 20 mg lisinopril oral, & 360 diltiazem oral 1x ea. Marginal lipids, controlled with 1200 mg red rice yeast. Have been reactive hypoglycemic since 1973. Other than advancing arthritis, no other ailments. Lots of regular checkups and labs, stress tests & echos (had pericardial effusion for 2years after bacterial blood poisoning from a spider in Africa). Take underarm applied testosterone holding 400 free T. The last time this happened three years ago, my Cardio Doc cut my Lisinopril from 40 mg to 20. Erections returned and light headedness stopped. Worried about stroke...ideas? More thanks than I can say for an answer. Lee