<human>: Can you provide a brief overview of the text?

So I had just come out of the gym, and felt a bit weaker than usual. Needing to top up our hot water meter so I could have a shower when I got back home, I popped to the nearest supermarket, but once inside I realised I was not feeling well at all and dashed outside to take a breather. I ended up lying on the floor after nearly passing out, and lay there for nearly ten minutes, right outside the shop door, with no-one walking by batting an eyelid. I finally managed to muster enough strength to go back inside the shop (knowing i needed to get some sugar in me fast) and the next thing I know I'm being helped up by the cashier who asked me if I needed a glass of water. I said yes, and again apparently collapsed because the next thing I know I'm lying in the drinks aisle (which is freezing cold since all the wines are kept refrigerated) and in an absolute daze I stand up and walk out of the shop, this time with no one saying a word to me as I left.
I stopped a few times on the walk home (which is 5 minutes from said shop), but now I am back home and have regained some sense of composure, dignity and sense of reality, I am really angry that in my moment of need I was ignored by the local neighbourhood and the employees of the shop, who must have recognised me as a local, and yet I feel as if I was treated like a drug addict who had lost all self control and self-respect and thus was little more than an eyesore on this wonderful community. 
The back of my head is throbbing, my elbow has a huge lump on it are black and somehow the front of my chest is in pain as if that got a bang too on the way down. I am really upset.
<bot>: I collapsed twice in the local shop because I didn't have enough food for breakfast and then went to the gym. Got no help. Feel upset and angry. What should I do?