I recently felt faint after exercise. One of tye medications I take is bumetanide. I took this medication along with other anti-hypertensive medications?

Low blood pressure. Faintness would likely be from dehydration from taking a strong diuretic in addition to multiple other blood pressure lowering medications. Listen to your body and consider using life style change and frequent movement through the day to manage stress skillfully . Stress is a potent cause of high bp. This will stabilize the autonomic nervous system and lead to improved health.