I was walking with a friend and felt quite hungry, something I am very used to, I can go for many hours without eating. So I am walking and then everything around me starts to speed up, I feel agitated and very shaky. I walk into a take-away and order some food, I pay for my food etc. as I am standing I feel like I am going to pass-out, I sort of shake my head and body, it was quite busy so without trying to sound rude I asked if I could have my drink straight away. I take a coke and start knocking it back. I still feel like crap. I sit down with my friend and I'm still feeling very shaky, for the second time I feel as though I am going to pass-out, a part of me wants to lie down on the seat, then I just drink more coke and start shaking my hands and head, and start hitting my chest (why? i don't know), everything is going fast and I can't make sense of anything, my friend is talking but I am not paying attention. Also, I feel enraged, I feel extremely angry, I see a guy standing next to me, I want to get up and hit him, then my food is ready, my friend collects it and I am all over it like a tramp on chips. I don't feel better. I feel like passing out again. To avoid embarrassment I thought I should just go into the bathroom and just pass out there. I try and pull myself together, then tell my friend I need to get out of here, luckily he has a car so we head off. I am walking very fast (feel as though I will collapse if I slow down), again I feel jittery, all over the place and again, I am feeling the rage. A guy asks me for £1 and I feel like throwing a punch at him, I just swear at him though. Almost get into an incident with another guy. So we finally reach my friends car, I sit down and my hands are shaking. I finally get home and I feel fuzzy, very light-headed, but I don't feel nauseous, I splash some water over my face, drink some too, I get changed, lay down in bed, feel restless and then start blasting some music really loud. Eventually I calm down, and then maybe after 30 mins or so I fall asleep. I was really freaked out by what happened. I've had periods of feeling faint after not eating for hours but nothing like this at all. I had some toast in the morning and this happened only about 4 hours later, which isn't even that long. I had around 7 hours sleep the night before which is okay. It was sunny during the day, but not too hot. Going to make an appointment with the doctor tomorrow. I've been reading up online and people are saying it could be linked with low-blood pressure. What do you guys think?