I have had a slight, burnt like sensation on my tongue, as it goes into my throat for approximately 6 weeks. The burnt sensation does seem to move into my mouth on occasion, into the roof and further along my tongue. It is not really painful, just irritating.In addition, may be related, maybe not; my skin has started to become prickly when I first start exercising or when I start getting agitated or hot. This has not happen before, and started maybe 3 or 4 months ago.