I am 34. i have a red rash on the sides of my stomach and back. it is linear and itchy. it feels dry, but not bumpy. what is it?

Stretch marks?: Aka striae= scarring on the skin with an off-color hue, caused by tearing of the skin, which over time may diminish, but will not disappear completely. Often associated with rapid growth/ weight changes. And may be influenced by hormonal changes associated with puberty, pregnancy, bodybuilding, hormone replacement therapy, cushing syndrome etc..I suggest consulting doc for eval. Good luck.