Sunday is usually my bestest most funnest day

, but after I had my usual fun part with the Grands, then DD accompanied me to the basement and had to help me the whole way this time. I had little strength and little coordination.
It was time to change the filter on the furnace. A job I have been able to do on my own, until yesterday. I have lost a little strength in the past month.
I'm wondering if it has anything to do with the D3 and Methyl B12 I started taking? What are the adverse side effects of these Vitamins? Could I be taking too much or possibly I am allergic? What do you experts think?
After I made it upstairs from the basement, I cried, as I grieved for another loss knowing that this may have been my last trip down those stairs.

In the old days I took them 2 at a time up and down, 3 or 4 times a day.
I just feel so down about this. May I ask you to pray with me that this is only Temporary and that I may get back the recent strength I've lost, so that I may remain as independent as possible.
Thanks