Sweetness of the crab

I don't know where they came from and I don't know why they came
The experiments they did made sure I'll never be the same
They said they wouldn't hurt me, they took me into space
I woke up hours later with sweat running down my face

I wondered, was I dreaming? But I could not explain
These scars upon my body and the blank spots in my brain
I don't remember drinking, I thought it would be best
If I consulted with the experts for a medical test

The doctor used a stethoscope and heard a ring tone
They replaced my heart with a mobile phone
And since the operation my body functions fine
But every time you text me, you send shivers down my spine