Can the body be stuck in a state during practice? So I've been doing vipassana meditation more regularly after my second 10 day regularly. I try to do 1hr to 1.5 hr per sitting and meditate as much as possible during my commute.

I've been feeling many more sensations lately as well as having a deeper feeling for where they reach in my body. I've also had strong emotions regularly coming up and I've had some things that have been happening as well.

I try my absolute best to be equanimous but at times during my meditation my body will automatically tense up And twitch. My main concern is my neck / throat area. Lately when I swallow, I don't feel a bump per say but I feel a spot of tightness which even feels like a ridge that I have to get over when I swallow sometimes. It only happens sometimes. 

I've been feeling a ton of tightness in my neck and I've never felt this before since the neck sensations are fairly new. Could it be that something is arising which is causing a shift in the state of my body like increased neck tightness and constriction? Generally after meditation this feeling gets much better so I'm not sure if it's a sort of transitioning state. 

I'm not sure. Saw a doctor and they couldn't find anything after feeling my  neck. I don't smoke. I am active and a healthy weight.
Past sankhara and sanna create bizarre experiances when meditation. Don't get alarmed, just look at the sensations and keep meditating.

To rule out any sensations due to medical issue, it is also best to see a doctor when pain or tightness arise. If there is no medical issue then don't fret about it too much and do meditation as usual.