Hi Good evening. My father is under medication for Diabetes and High BP since 2 years. But Diabetes is in control now (hba1c - 6.5, previously it was 10+). Recently on 15th April, my father took his first dose of Covid 19 vaccination Covaxin. Since then, he looks very pale and tired. He is sleeping a lot. When i ask him, if he is okay, he is saying that he is fine, but I am worried if i need to take him to doctor. Kindly suggest whom to consult. thanks