I have a tiny little circle of white on roof of mouth and have had a throat thats not sore, but not normal for mont,the white patch on roof of mouth is not raised its just there and its only small. i just want to know if its normal, and my throat?

White circle: White lesions should be examined to determine their origin, and to determine whether or not they are problematic. This is especially true if of greater than 2 weeks duration. See your Dentist ASAP. And as to your "not normal" throat, you will have to see your Physician for an examination and an opinion. If you smoke...don't. And please see both your Dentist and Physician sooner rather than later.