AAAAANYthing can 'go away' given the right conditions, or seem to go away.
I regularly experience my disability 'go away' when I haven't gone out and done anything physical for a while.
If I haven't used my wood working tools for a month or more, and have not gone for any long walks for a week or more, I can actually get to thinking I am really just a lazy bum and not genuinely disabled with fybromyalgia.
Of course, 3 straight days of wood working usually snaps that illusion real nicely. Nothing like severe pain to remind you why you haven't worked for so long you have forgotten what it feels like.
My dysphoria, if it exists at all, is more noticeable in the summer.
Because in the winter, I am not miserable for being unable to go swimming in a proper swimsuit.
In the winter I am not constantly miserable that I can't wear short shorts like the young girls.
In the winter I can wear my leather jacket, and I am more inclined to like wearing nice warm pants, so I am not focused on wishing I could wear nice sun dresses or skirts and get some sun on my legs.
In the winter, I am more likely to want to wear a hat, or hood over my head, so being constantly reminded of my lousy hair loss is lower.
In the winter, I am more likely to be ok with being home indoors and not out in public.
In the winter, the days are shorter so I am less able to spend long days miserable.
Conditions will always be variable, and dysphoria is not immune to conditions.
And dysphoria can always come back big and bad and nasty, or not.
I would likely be happier if I lived on a research base in Antarctica where clothing was buried under a parka.
I also likely would be happier if I was drugged up on antidepressants. Been there, didn't like being always wanting to sleep and all the rest of the usual 'some side effects may be......' I will be taking a big step for me personally indeed to go on HRT just because of my loathing medicine.