A few days ago, I noticed a few blisters on my hands, more precisely on my knuckles it seemed. I didn't know what caused them, but I shrugged it off and went about my way. Then I developed some on the "underside" of my knuckles, the sides of my fingers, and now finally I've actually gotten one on the palm of my hand, just about where the middle finger joins the hand. They don't itch, but are painful when I bend my fingers, and are now beginning to worry me as I have no idea what caused them. I haven't been burn, haven't come into contact with poison ivy or anything like that, no cleaners or new soaps or anything.

They're on both of my hands, though there seems to be more of them on my left hand (which was odd to me seeing as I'm right handed, and if it were contact-related it'd make more sense to be on my right), and so far mostly on my fingers with a stray one on my palm.

My mother is stumped too, as I'm a healthy 19 year old female and have never had anything like this before.

I have no health insurance, so I need to know if it's worth it to go to the emergency room or not.

Thanks in advance!~