I got mine done sooooo long ago, when they used to use a local anaesthetic on your tongue.
They can't do that now because of the risk of you swallowing your tongue or paralysing your airways
so in fairness, I didn't feel much.
It was swollen for about 2 days but it took me a few weeks to learn how to run my tongue around my teeth lol
I hated the larger bar (they put a long one in to compensate for swellin) and I used to catch that btween my back teeth when I was chewing food
but since I had the smaller bar in I love it and I too will be a pierced oap lmao