advice rn

I'm at my boyfriends house tonight and he's asleep, I had a mega bad back today that was absolutely awful so I had some paracetamol and that helped now I woke up again like an hour or two later I think it was and my left hip and back again is in horrific pain and I don't wanna have to wake my boyfriend up to go downstairs and get more tablets, he's in such a nice sleep what do I do?