I've this strange feeling that's driving me absolutely mad. I'm not sure of I can accurately describe how I feel, but I'll try my best. I feel as if I'd forgotten something, like my car keys or a lighter, but I know I haven't, I feel like I'm on the verge of crying but I want to laugh, I feel like I have a void between my stomach and my heart. Is this loneliness that I've not yet experienced or is it something else, a nicotine craving maybe? I just started smoking again, I've always smoked but not like now, this time I feel as if it's become an addiction. But also, I've never been so lonely before, my friends are moving away. I feel dissatisfied with something, myself?
Please help me, this feeling is driving me mad.

You feel a little bit what I feel, you see people moving forward and feel stuck... But maybe the answer is you helping yourself moving forward. Focus on doing something you love. Something that maked you happy. Do yoga. Eat a starbucks muffin. Anything.

You and me both!I get this feeling a lot and I agree with SarahLawrence. Do what makes you happy, maybe go on holiday! ANYTHING!

Update
I have been seeing friends, writing more music and been going on dates and I can say I feel okay, not much better though.