ronshar,
I obviously live in a different town to you because I do look around and can confidently say that the obese are either non-existant or very few and far. There are a few overweight people, but on the whole, the majority are slim - considering they were wearing padded coats, they are probably even thinner.
Winston Churchill once said, "there are lies, damn lies and statistics". It is difficult to obtain an accurate picture of the situation but even with statistics such as "54% of the population is overweight or obese", there is a margin of error - up to 5% usually. All that tells me is that there are as many slim or 'normal weight' people as there are overweight people in the country.
There is no doubt that in many industrialised countries, UK included, people are getting bigger (and taller). However, I do not believe these scaremongering stories that, for example, 50% of the UK population will be clinically obese by 2015, 2020, 2030 or whatever date.
Normal weight people are the silent majority. They don't make the headlines, whereas, for example, an individual weighing 45 stones does make a headline because it is rare and unusual for a woman to weigh that much.
As for your Chiropractor, surely being a resident in the UK, you are entitled to free NHS treatment. If you are incapacited, you should be entitled to free prescriptions. I obviously don't know your financial position or anything about you, so it's difficult to reply to your comment. However, if you really are paying in the thousands of pounds, perhaps private healthcare insurance like BUPA or AXA PPP might be able to help.
I will try to find the footage on Youtube.
I can understand why you feel bitter by your experiences and blame the obese. If you really believe that you suffered and are injured as a result your workplace conditions, then perhaps visiting a solicitor would be a good idea, especially if your medical care is personally costing you in the thousands of pounds.