Weird Marks on My Skin: plz help

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​So I’ve had these marks on my arms for like 2 months and i have no clue what it is. It’s not hives, and they aren’t itchy or painful or irritated. I’m in the process of getting a doctors appointment but im worried and can’t stop thinking about it. Any help would be appreciated.