I have orthostatic hypotension. Is there a way for me to ease the symptoms?

Orthostatic hypotens. The significance has to do with the problems caused by dropping blood pressure with position change. This can be very problematic for people. See the following wiki for more details: http://en.Wikipedia.Org/wiki/orthostatic_hypotension.
Hypotension. Provided that you have seen a cardiologist -- and that you have had comprehensive cardiovascular evaluation -- and that your cardiovascular system is normal, healthy and stable -- then my advice would be three prongs -- and that is good diet and nutrition, regular cardio/aerobic exercise and good rest.