I'd say be on guard when the sex leads to risky behavior like random sex with a strangers or someone who could easily infect you (sex worker), If the urge is uncontrollable to the point that nothing satisfies, or you're having sex or similar behaviors more than 3 times a day. This is also largely relative and just an opinion from my own experience but everyone is different. Try looking at your baseline urges when you are well. Use it as a guide for what is normal not necessarily what others feel is normal.