you say "lately" so I'm unsure if it is a blood pressure issue .. I am leaning more towards a thyroid issue because "lately" infers it's not been any issue before .. but .. your posting of your low blood pressure results indicate you are most likely feeling cold due to the result of digestion energy that pulls blood from our extremities .. the low blood pressure isn't necessesarily a problem for everyone .. some people have low blood pressure and are fine .. as long as it's not affecting you in other ways .. ie: dizziness upon standing , light headedness , feeling faint etc.
Unlike high blood pressure, low blood pressure is defined primarily by signs and symptoms of low blood flow and not by a specific blood pressure number. Some individuals routinely may have blood pressures of 90/50 with no symptoms and therefore do not have low blood pressure. However, others who normally have higher blood pressures may develop symptoms of low blood pressure if their blood pressure drops to 100/60.
If your physician wasn't concerned over your low readings then he must know your history and doesn't see a problem there.
Thanks...
As for thyroid...I did bloodwork couple months ago. T3 levels were in the normal range...exactly in the base. It was 8.0 to something and mine was 8.34.
Now, Im more concened about TSH hormone, which directly relates to T3 ... I was out of range and high.