hello, after 10 weeks of injecting EEn in MCT oil in the vastus lateralis sites, i've noticed a very small area around the site on my left thigh has darkened. i just noticed it today. my last injection was 4 days ago, there's been no pain or discomfort since the injection, nor is the darkened area raised or swollen. i only noticed when i was able to see it. i'm wondering if anyone else has experienced something like this, and if it's a cause for concern, since i can't find much on darkened injection sites on google.