I have fat in blood and I am not taking much oil and fat stuffs already. What is the way to remove it?

I like to know what are all the troubles in case of fat in blood. I am 58 years old male. I am still a bachelor. I cannot take much alchol. If I do I will get stomach problem. Therefore I am taking only beer without alchol and occassionally beer of 3 or 4% alchol. If I run to catch bus, I feel a heavy pressure (like pain or suffocation) in the chest but I don't have blood pressure. I need more air while travelling in the bus if not I have to face suffocation. I cannot travel more than 15 or 20 minutes in the bus (if there is no sufficient air or if more people travel in the bus). This happens (only bus tavel trouble) since my boyhood. I feel something presses my brain region or head while driver turns the bus in turnings. First of all I like to know the reason for all these troubles and then the medicine.