Cannabis and amitriptyline?

Received my first prescription of Althea T10 Soft Gel Capsules.

I took one around 3pm and then took 25mg amitriptyline for my nerve pain at 8.30pm. 30/40 minutes later, feel very confused, very disorientated, racing heartbeat and losing focus. So much so I have to keep reminding myself why I'm making this post.

Head feels weird and keep freaking out that I'm going to die.