My dentist is replacing an unattractive veneer but I started experiencing pain and sensitivity. Any risks in having it replaced?

Recently chipped a veneer, had it replaced, which was great but it failed and cracked. The dentist replaced the veneer again, but it's the wrong colour and misaligned. Dentist agreed to replace the unattractive veneer, however began experiencing pain, initially severe throbbing sensation, sensitivity to cold. Percussion test very painful, pain reduced, second percussion test less painful, passed the cold test. Risky to have replaced? Less damaging methods? how long would you suggest waiting?