A couple of weeks ago I noticed 1 or 2 small blisters on my tongue that went away the following day but for the past week my tongue hurts, its difficult to eat and feels like I have ulcers all in my mouth but I cant really see anything that appears odd.  The pain is only on my tongue and nowhere else in my mouth
Thanks for your query, I have gone through your query. The blisters over the tongue can be because of the herpes virus infection The other possible cause can be because of Memphis vulgarism. Nothing to be panic, consult an oral physician and get it evaluated. If it is a herpetic infection, you can take antiviral Chat Doctor.  If it is a Memphis, then you can take topical steroids like triamcinolone acetone. I hope my answer will help you, take care.