sounds like it has “broken loose” and decided to go on walkabout. how has your stress level, sleep, and diet been the last few weeks? those things can basically loosen the encapsulation around the chip and it can start moving on you.
having sensations of tingling is not great. it might be causing a pinch, and if it continues it should probably come out and possibly get re-installed after autoclaving by a professional. alternatively you can try to move it back into position. if it moved suddenly then it’s probably loose under the skin and you should be able to coax it back toward a more ideal location… then strap down some toothpicks making a little box around it to keep it from moving again. after it’s in place, take prenatal vitamins and get good rest and try to get your body to re-encapsulate it… it might take several days, which is a pain I know… but better than having to cut it out.