Stuck shed/necrosis?

[LizardLurkin]

Recently, while handling my chameleon, I noticed a couple of his back toes appeared unusual. It looks like the nail bed is particularly stretched out, and I can only think it must be retained shed constricting the toe that has hardened over time. I'm sad it alluded my view for so long to get to this point.
I stopped handling him as much to reduce stress, but now think I should do weekly check ins to prevent occurrences like this in the future.

What concerns me is that, on the affected middle toe on one foot, and the pinky toe on another, I see a darker grey/somewhat black color, and I fear its become necrotic. He's always retained shed on his ribs, but never problem areas like toes until now, I guess.
What are you guys' thoughts? I apologize for the blurry photos, but my phone really did not want to focus on such small details.
I feel a bit anxious to try and remove it at risk of hurting him...

 

[MissSkittles]

Personally, I would carefully try to remove the shed. If it’s constricting and blocking his circulation, it needs to come off to give the toe any chance. You also want to check the toe and see if it is indeed all black or not. It might be fine.
Do you have any silver sulfadiazine by chance? Plain Neosporin will do as well. If there is dark tissue, put a small dab on it and keep a close eye on it. If it truly is fully necrotic to the point of losing his toe tip, a vet visit is most definitely needed. Of course, if you aren’t comfortable trying to remove the shed, a vet visit would be needed.
There’s nothing to feel badly about. I would say that a chameleon getting correct husbandry has very low risks for shedding problems. Now that you know that you need to check him, you will.