Hi Kathy
I feel similar, never really felt too close to other terrorist attacks, appalled yes, but this one was different and not only because I am in Florida at the moment just about to complete three weeks of vacation full time.
But to the point of travelling to the US, I was quite apprehensive for this trip, I'm a regular visitor here and have taken the time here to explore and further my confidence of getting out and about and did short stints of girl mode last year in such places as North Carolina, West Virginia and Mississippi and Tennessee among other more accepting states. But as i have now begun transition rather than just day tripping, it was important to me to get some real girl time on this trip and then all hell broke loose with North Carolina and the British Government issuing a warning etc. So I packed my case not sure if any of my girl stuff would see the light of day. With all the news reports and hate bills I thought it wasn't going to go well.
Well first day here, nail varnish on, heels on, deep breath and out I went. Couldn't have gone better and haven't looked back, all my boy stuff is still in the case including my beach wear, and yes its a beach holiday. I have had less problems on this trip than any previous, not once been misgendered and received plenty of female greeting in restaurants and shops and if anything after Orlando people have been even nicer, Today a waitress we had previously, came through our section and greeted us quite loudly and enthusiastically with Hello ladies great to see you again, probably leaving the whole restaurant in no doubt that it was two ladies at this table.
So please don't be put of with going to see that eclipse. There is a lot of bad stuff said and done in the news and politics and no doubt in real life somewhere far too often, but really, its not that bad on the ground when you get there.