I had them about a year ago. I've never been the same either. A tiny black speck on the floor that is from my socks, or a fruit fly, can send me into hysteria.
The best thing you can spend money on IMO is a bedbug proof mattress encasement and those interception cups for the legs of your bed. Nobody will ever regret doing that. It can happen to anyone, right now Paris is rife with bedbugs.
My room mates/tenants in my basement spotted 2 bed bugs and we have gone full nuclear on them because we are all terrified of them. Like they've replaced everything soft, rubbed the sprays into the carpet, and I made a salt circle with d earth around their entrance.
We also keep quoting aliens (nuke it from orbit, only way to he safe) and Starship troopers.
You should also run every piece of clothing and bedding you own through the dryer, and inspect your mattress seams, and get bedbug mattress encasements.