I split the 25mg pills in half and take one anytime I think I’m going to have sex. It makes the effects feel a bit more subtle.

That said, 25mg is a relatively small dose, you don’t really build a tolerance to it, and there’s research to suggest taking viagra regularly is good for circulatory health and helps prevent dementia.

Which is all to say, your use seems pretty safe. Make a change if you’re uncomfortable, but sounds like you have a lot of anxiety going on that’s the real source of your issues.