I weight is 109 at 5'4" at the age of 56 is this good or bad?

I would say you may be about 4 or 5 pounds under weight.
As long as you eat good, feel healthy, have energy and don't feel or look too skinny you should be fine.

Your slightly under weight, but how do you feel, are you where you want to be? Depending on your frame, the normal (?) weight range is from 110-145 lbs.

Your slightly under weight, but how do you feel, are you where you want to be? Depending on your frame, the normal (?) weight range is from 110-145 lbs.
I would agree. Do you work out? Like walking a lot. What do you eat in a run of a day?