Anyone ever stop getting a high and start again out of nowhere?

Okay so I’ve always had a hard time getting high off weed. I don’t know why but I had a friend tell me that I must have a high tolerance so I tried more and it worked. I continued to smoke for a year maybe a year and a half and suddenly I couldn’t get high. I even had a couple of my friends try it and it was potent to them but for whatever reason it wasn’t working anymore. I didn’t smoke for a few months expecting my tolerance to go down but nothing. I tried a few different strains, dosage, and even edibles. For maybe a year I couldn’t get high but suddenly out of nowhere I could. I suppose it was a tolerance issue but I don’t understand how. My question is has this ever happened to anyone else, specifically with weed.