My friend is about 53. he recently has be having dizziness and at times his legs emt cl him out bp was good. pulse was not regulare. any thoughts.

Your friend has: Irregular heart rhythm likely from atrial fibrillation. I'd suggest he sees his dr for a comprehensive exam to include blood and urine test, ekg, ultrasound of the heart / echo, carotid artery & possibly a stress test to check for coronary artery disease. He needs to attain ideal body weight , to eat healthy, and exercise regularly. God bless you both!