Hi @Hunter1 welcome to the forum. Ive no experiece either but do know of someone who did have one, in my aphasia group and he didnt mention any issues when he was showing them. Naturally he was on blood thinners too.
Certainely inform the tattooist of your medication as it may affect the tattoo during the process and while its healing. This is due to the fact that blood thinners decrease your blood’s ability to clot efficiently. But I would give it 3-6 months before you do it. You don’t want any more trauma’s in this early stage in your recovery. The first 6 months are crucial to brain recovery, and your body will experience it as trauma regardless of what you think you feel about it. Take care now