I noticed that right under the rim of my penis head, at the front, the area looks a little blue. It is not cold nor does it ache at all. It is actually very warm and no discomfort has resulted. It's been a bit blue for a while now and I don't think a problem is there but I'm a bit worried after reading about early onsets of gangrene.
It also looks a bit blue at the back of my penis head near the connection thingy. I think that may just be pale skin and im a bit paronoid.

It's been about two weeks since I first really noticed, and under white light it looks almost normal.

Am I just paronoid and staring at the bluish collection of blood vessles on my corona, or do I have a problem?