question: Hi Doc,My husband is 38 years old and is often not-well. He has high B.P. and is taking one tablet per day since 3 months. He had suffered from Pneumonia about a year back. He is having heaviness in head since 4-5 months which we thought was due to high B.P. but even after B.P. control he is still unwell. At times he suddenly feels lifeless, at times very tired and cannot concentrate on official duties. What could be the reason. He had gone for general health checkup about 4 months back but everything was fine.