Skin swells after itching or pinching

[StarStuff18]

I'm a 21 year old female with height 5'7" and weight 106 kg. It's been a month that I started having this issue of getting itchy all over my body at random times. This stayed for a couple of days and doesn't happen anymore. However, now it's been a few weeks that whenever I scratch anywhere on my skin with a bit of force, especially the areas between my chest and knees and also my arms, it turns red from where I scratch it and then my skin swells a bit exactly from where I scratch. Yesterday I was using a comedon extractor on my nose for the whiteheads and after a few minutes my skin swelled up from there too. So now even if I pinch myself with force, it leaves some swelling. It doesn't hurt and reduces back to normal in 10 to 15 Minutes. Kindly guide me as to what should I do. Thank you so much.

[purple1234567]

Does it seem like this might be dry skin?  If not, then you may want to take a trip to the doctor to have them check it out, that's the best way to get some answers since they can do an in person exam and gather more of your medical history.