Hello and thanks for replying to my post. Do you have sore mouth and sensitive teeth also? I too, am rinsing and brushing with sensidyne all the time. It is difficult to eat and I choke easily. Even talking is uncomfortable. I don't know if this is part of FM or not. It is very uncomfortable. I will not mention it to my doctor as he thinks I need a therapist know without adding this to the list. Take care.