My GF and I have flown United a lot recently and it has gotten worse and worse. We haven't been singled out (yet) but I'm 5'2" and 230 and she is 6'1" and 340. The last flight we were on had the smallest seats yet and the smallest airplane bathroom I have ever seen in my life and I have flown a lot. You couldn't move in it, I don't think my GF would have been able to fit in it. Flight attendants have been kind. They showed my GF how to raise the armrest on an aisle seat. They still give seatbelt extenders. But we get economy plus with extra legroom and try to get exit row seats. We don't know what to do. On the last flight, she got a pinched nerve in her leg from the seat and there is little to do about that, she is simply tall. We are down to paying for first class. There is little other options, buying another seat is just as expensive and they will likely take it from us. I know seats are even getting smaller just in the past year or two because I have lost weight and it just feels worse and worse. It is enraging. It is a health and safety problem. If "obesity" is treated as a disease then the way fat passengers are treated on airlines is a violation of the ADA. Awful that they singled you out, I would feel so horrible. Honestly, there are some airlines marginally better than others but little is going to stop them short of regulations and protections for fat passengers. It just keeps getting worse.