Bedbug anxiety help

So I've been going to the house of this person once a week for a few months now, for about 30 minutes each visit. I sit on this pleather chair when I've been there, and I bring a backpack and set it on the ground (which is carpet). the backpack has come into my house maybe once in this time. I just learned on Monday that she has bedbugs, including in the chair that I had been sitting on, and my anxiety has been spiking ever since. I took the clothes I was wearing the day I had last seen her (which was Friday) and all the clothes around there and wash and dryed them, but I'm still really anxious I might have bedbugs. I've had a few bumps on my feet and legs and arms, but they're not the same and there's no clustering. I feel like I should do a deep declutter of the room and vacuum everything, but I am just really scared I have bedbugs in my apartment or in my car. I don't know the likelyhood I have bedbugs and I am panicking