I find the sides of microwaves to be the most tingly.
Most likely just swollen. But I have found that p0 is a bit meaty for some implants to give you the full effect. At least in my fat hands it is.
As for migration - my blue xSIID got “lost” in p0 and I ended up doing some aggressive finagling to move it into the gap between my ring and middle finger p2
DO NOT ATTEMPT TO BE STUPID LIKE ME.
Now I have nothing in my 0’s and I’m happy about it.