Meds for ADD for folks over 70 yrs. Old

I’m 75 yrs old and have been taking Adderall XR 20 mg daily for 25 yrs. My MD wants me to go off of it because it can cause HTN in the elderly. I have always had low blood pressure so I don’t think this will be a problem.
I also have hypothyroidism & a low normal # of red blood cells which (I think) make me prone to fatigue. I do take levothyroxine which works well. I got off of adderall and started on some natural vitamins/minerals which actually seem to help with my ADD. However, I am exhausted and, even with 11 hours of sleep nightly, I still take an afternoon nap.
Can I safely take my Adderall at my age. I feel I am sleeping my life away & need to get revel up a little which adderall certainly did. I have taken the same dose for the 25 yrs. But when I was working I sometimes took an additional 10 mg if I was working late. Thanks for any advice. I’m feeling s/w desperate . I also take Effexor XR 150 mg for intermittent depression. It has been a life saver for me.