I am also new to hypo and only after taking thyroxine did I start feeling the tightening of the throat, I was actually eating baby food for a week as I could not swallow, but it is getting better and as I do get anxiety and lightheaded I just gathered that the tightening was part of the fact I am not relaxed about the whole thing...I guess its a combination.
As for the tingly sensation you mentioned In also was getting those on and off again not sure if it was anxiety or condition and probably a combination.
I will be seeing an Endo later in June and really hope to find healing as the whole situation is getting me down emotionally
I did however make sure to go dancing the other night and had a great time, only at the end of the night got a funny feeling in my throat and ears and tingly hands on the way home...but I hope to try and continue enjoying life although these sensations to make me feel very vulnerable at times....
Wish you all health, relaxation and balance