I'm So Tired

I'm so tired, I haven't slept a wink 
I'm so tired, my mind is on the blink 
I wonder should I get up and fix myself a drink 
I'm so tired I don't know what to do 
I'm so tired my mind is set on you 
I wonder should I call you but I know what you'd do 
You'd say I'm putting you on  
But it's no joke, it's doing me harm 
You know I can't sleep, I can't stop my brain 
You know it's three weeks, I'm going insane 
You know I'd give you everything I've got  
for a little peace of mind 
I'm so tired, I'm feeling so upset 
Although I'm so tired I'll have another cigarette  
And curse Sir Walter Raleigh 
He was such a stupid git.