Just got my first two myself about a month ago.
Yes, about the first week it still hurts. Pushing it or even just making a fist with the hand sometimes you feel a sharp pain. Tingles and stuff just means your body is healing and covering the implant with tissue inside as any “foreign” body inside your skin. Give it 2-3 more weeks and you will be more comfortable with it.
The sudden pain does go away. Just remember not to play with it much (like pushing it or “feeling it”) so it can get in position right. If you move it a lot it might even migrate a bit. (Or a lot depending on your body type) let it heal.