The problems are for humanity not for you, with spurious use of antibiotics. Resistant strains can kill everyone.

Please tell me this is a joke / satire

No, there are many many people who are this entitled.

This is really surprising to me since there is a lot of evidence that oral antibiotics can mess up your gut flora, creating all sorts of bad side effects. Do you have any digestive issues?

The people responding to this seem to assume you’re doing so for funsies, which might be true. But that’s not what you said. So for their benefit, it’s worth pointing out that daily doxycycline is a pretty normal therapy for a range of chronic stuff—malaria prophylaxis, rosacea and skin that’s prone to infections, I’m sure there’s more.

If loopdoend’s doing this, it feels like a good bet that there’s a doctor in the mix judging that it’s medically appropriate for them.