are you a male or female? I have had issues with my tounge being white and went to Docs was told I had thrush, took the medicine and also have a burning sensation but not all the time. With women menapause can cause "burning mouth syndrome" or other names for burning mouth syndrome include scalded mouth syndrome, burning tongue syndrome, burning lips syndrome, glossodynia and stomatodynia. Also acid reflux can cause oral issues in the mouth. From the acid coming up while sleeping and sitting in the mouth. The pimple thing...no clue as Brian has stated we are not doctors, I am a caregiver but I watch my oral health care very carefully now that I am involved with Oral Cancer. Sometimes I freak out too, but my doctor said "make cancer the last thing you can think you have." But I'll tell ya that burning mouth hurts like hell! I can only imagine the pain Cancer survivors feel.