What are these?!

Ok this worries me...so I have these purpleish vein looking things on the side of my thigh just a little bit near my hips, on my ass and near my tits. I have gained weight the past few months. Due to health reasons I was 103 at the beginning of this year and am now to 123. I've looked up what these are and all I've found is it's due to weight gain and the blood vessels bursting that it should go away in a few weeks. 3 months later they still haven't. Do any of you know what they are and how to get rid of them? I'd really appreciate any advise!! Thank you!!