Bulgy thyroid eyes (Exophthalmos) is most commonly caused by Hyperthyroidism (over active thyroid) in which case she would be losing weight not piling it on. I’ve always thought her eyes are bulging, but it would be unusual for an underactive thyroid to cause it. I’m sure her weight issue is purely from overeating, but you never know. Maybe she has become diabetic, or her cholesterol is high and that’s why the Dr has requested to speak to her. Her feet were very swollen not long ago, so there’s obviously something amiss.
To be fair, Mrs G might not want to move from her own area. My Mum didn’t want to, so we didn’t pressure her into doing so, it just meant we had to travel further, but that was fine we just wanted her to be happy.