I've been worried about my dad because he's been experiencing sudden bouts of heavy sweating and weakness, and this happens almost once a month or sometimes every two months. We got an ECG done, and his blood pressure seems normal according to the tests, but I'm still concerned. What might be causing these symptoms, and which specialist should we consult to make sure it's nothing serious?

These symptoms could be indicative of episodes of vasovagal syncope, which can cause sudden heavy sweating and weakness. It is important to consult with a cardiologist to rule out any cardiac issues. In the meantime, your father can take Tab. Fludrocortisone 0.1 mg once daily to help manage symptoms.