Tampon issues

So I’ve had a few tampon issues within the past few years.

1. I’ll be sitting normally and I feel myself setting myself! It’s not a lot but it’s a little bit. It doesn’t appear to be urine, but it’s something. I noticed it’s when I’m on my period wearing a tampon.

2. I’ve had tampons fall out after doing vigorous exercises.

I’ve tried everything from switching brands, making sure the Tampon is really up there. And trying different angles. I’m at a loss of ideas right now and have given up on tampons :/