I've been smoking about 2 grams of weed per day for the last 5-6 years. I started noticing what you are describing about 2 years ago, and it got a lot worse when I started smoking a lot of hash about 1 year ago.

To be honest, the effect it has on my appearance is pretty much the negative effect about my cannabis use. But this adverse effect is starting to have quite negative affect on my life.

I started university last year (computer science), my studies are going great, but I'm experiencing exclusion from many teachers and others students because I "look like a drug addict" and in their view I don't belong around them. (quite unfair if you ask me). Last semester I almost didn't show up for a single lecture, I just studied at home and showed up for the mid-semester exams and final exams.

I also notice sometimes when I go shopping, the security guard starts following me around because he thinks I look like someone who is going to shoplift.

I'm currently 3 days smoke free. I'm probably going to smoke again and some point in the future, but for now I'm gonna take a few months break to give my body and mind a long needed break.