I also had a "tightness" or "tight" feeling somewhere in the same area as you had. However it really didn´t feel like an erection.
Now being 10 months post-op that feeling has decresed significantly. And what remains I don´t really think, feel or even remeber, that erection would have felt like this. It´s something else.
When I´m aroused I can feel something happening between my legs, but I don´t think that as something undesirable, because it just tells me that I´m liking the person in front of me and it gets me even more horny
And then again, I´m quite sure that cis women can also feel their genitals, but of course I cannot tell how they feel it. Also with cis woman getting aroused, their genitals do get swollen a bit.
But, go how you feel, because nobody cannot tell how you feel and I cannot say more than what I feel.
