Help - I'm wetting the bed?!?!!

I'm 19 and in the past 6 months I've wet the bed 3 times?! I really don't know why because I pee right before going to bed every night and if I ever need the bathroom I go, even if I'm almost asleep I get up and go.

The first time it happened I was ill so I just assumed that was why. The second and third time however had no reason that I know of and both times I woke up freaking out because I started realising it in my dream and woke up midway.

I've also noticed recently that I'm peeing more often and I get really desperate really fast as in I could go from not needing to go to crossing my legs and running to the bathroom a few seconds later.

I'm really confused and I can't understand why, has anyone else ever started wetting the bed as an adult? What was the reason? It's plain embarrassing and washing my sheets so often is a pain because I hand wash.

Notes-

I'm definitely not pregnant

I'm not sexually active

I don't have any sort of pain so I don't think it's a uti