First of all, if you haven't already, throw everything you took with you (clotheswise) in the washing machine pronto. If you haven't & the clothes are on the laundry pile, wash everything in the laundry pile & seriously deep clean the area around it. If you can, top that off with some household insecticide & pray for the best.

Did the welts just appear on your lower legs & feet? Probably not bed bugs. The lil critters usually bite you on your upper body. I say usually because I got one on my foot a few weeks ago during my trip to walk the Camino de Santiago in Spain. All my other bites were on my upper body. I didn't stop getting bitten until I had washed everything (sleeping bag included) in a washing machine & dried it all in a dryer.