I guess you'd say that latex paint and oil-based paint are the same thing? After all, you said you worked in a chemical plant for 6 years and all paint is made the same way using the same chemicals. They had me fooled in thinking they were different.
If you don't get it, maybe it's good you don't work there any more. It's possible the fumes and chemicals have affected you in an adverse way. You may not think so but only the doctor will prove you or me wrong.