Slight aggression signs?

[hurricaNe]

Hello, ive got a bumble bee male, who i've had for about 2 years going on three now and lately ive noticed that hes getting some what "aggressive". At times when i'm near the front of the tank and he notices a movement he shoots his head towards me really fast and creeps towards the front. when i reach my hand in the tank, same thing, he shoots his head towards me and looks as if he is thinking about striking me, but never does. I do not feed in the tank nor do i feed live. One other thing i know that snakes can be aggressive when they are in shed mode, but i did a check on all my balls to see if they're alright and about 3 days ago i did notice he was in shed but i had a problem when i had him on my arm. He had a SUPER tight grip on me and i mean like fully wrapped around me from tail to head and i felt that my arm was sort of losing blood circulation, this is strange because he has never done something like this, also, he was kind of stiff and was holding a strange formation and was really hard to get him to let go of my arm/untangle him off, and again i know not to handle snakes when they're in shed mode but i was only checking for something like a shed, and in this case he was shedding. Any insight as to why he whips his head lately at me? Could it of been that he was going into shed mode a week prior and i just wasn't too sure..?