Oh my God...

I went to the doctor's in a panic that I might have early onset Alzheimer's, as I'd suddenly realised I couldn't even remember the last time I had sex.
"There's absolutely nothing wrong with you," said the doctor, without even examining me.
"How can you tell without a brain scan or even a thorough check-up?" I asked.
"There's absolutely nothing wrong with you," said the doctor, without even examining me.
"How can you tell without a brain scan or even a thorough check-up?" I asked.
Spoiler: