Are my screws loose?

I had my surgery almost two months ago on December 7th, T2-L4. I have slight pain on the left under T1 where the screw is supposed to be. When I apply pressure with my finger I can feel a firm ball. My mom felt the surrounding area along my scar and she said she can feel the rest of the screws too. So I guess it doesn't have to mean it's loose. I also statted physical therapy at week 6, but I don't think I went too far with my movements so much that I have loosened a screw. I don't have any other pain whatsoever and I feel amazing.

Edit: accidentally said T2 T4 instead of T2 L4