Are you able to feel your band move around inside if you sit, stand, or exercise?

Nope. I can feel the port, of course, but nothing else.....

No. The band is behind the rib cage and so cannot be felt by touch and is securely stitched into position and so cannot move.

The port, however, is closer to the surface and so, especially after weight has been lost, can usually be felt by touch. That is also firmly stitched into position and so should not move. However, the stitching must be less secure as some people (not many) find their port can turn or tilt making it harder to fill. It can also that people sometimes feel a slight pulling sensation in the port area.

I no longer have the band but when I did, the first couple of years I kept getting this feeling on my left side- I could have sworn my band was moving around. It hadn't slipped, I have no clue what it was but I did feel it. It stopped eventually

No...I can feel the port a bit now because I lost some weight there, but I've never felt anything else..