hello there. few days ago i noticed a patch of my skin feels like it's been burnt, though it wasn't. it's on the left side of my stomach and goes a bit at the back. the skin feels like burnt and very tender and irratable to the touch. it has no redness, no swelling, no itching, no rash, no nothing. it's absolutelly normal looking but feels like it's been burnt. i've actually had it few times before for the past year, the other times i've had it across the arm, one side of the face and i think my leg, but now it's on my left side of the stomach. it's been about 3 days that i have it and it makes me worry if it's gonna go away or not becouse i'm anxious type of person, also makes me wonder what this actually is. i've found many similar cases on internet but never the cause. anyone knows what could this be?