It's not always so black and white. I (40s male 5'8") was always normal weight although these days I'd be called thin but in the 1970s and 1980s I was typical

It's not always so black and white. I (40s male 5'8") was always normal weight although these days I'd be called thin but in the 1970s and 1980s I was typical for my age and gender. Within the last 5 years I started to gain weight even though I wasn't eating more I just thought it was age. I track what I eat it's a habit of going to the gym for 20+ years. Even though I slacked off the gym for about five years I was active in the summer. To make a long story short it was my thyroid failing. I'm not the typical person who has thyroid problems it's usually middle-aged women. That alone is probably why it took so long to spot the problem. Now on 0.075mg of Synthroid my weight is slowly falling, and yes this still is without any changes to my daily diet. I feel like I have been reborn and all kinds of weird things have stopped; foggy brain, dry skin, weight gain, dozens of other small things.