oh boy, this is such a common trouble for us in the middle ages! First, getting a medical check for the obvious is a good idea. I had my thyroid out decades ago (Hashimotos), afterwards what i ate had an actual relation to my body size - first time in my life! Be sure to ask doc when you should see results after implementing any recommendation, and if you're still having trouble after your TSH tests come back normal push for the more precise thyroid tests like free T3, free T4, and so on. It's not unusual for people to need a T3 (cytomel, liothyronine) supplement in addition to the T4 (synthroid, levothyroxine, etc.) when they get older as the body can't convert the T4 into the T3 which is what is actually absorbed by the cells.
My dad, bonus mom, husband and i have all had good results with the 5-2 Fast Diet, using the book written by Michael Moseley and Mimi Spencer. I'd used a variation of this idea to maintain my weight all thru my adult life - basically i'd go to bed pretty hungry 2-4 nights a week when i wanted to lose some pounds. The 5-2 idea is that you do a modified fast (400-600 cal per day, depending on your size) 2 days a week, then eat pretty much what you want the other 5 days (as long as you don't absolutely stuff yourself). Dad, mom, and hubby all do fast days, but it's too hard for me (i tend towards hypoglycemia and don't eat as much on my feed days either). So i do the 'go to bed super hungry' thing (no food after around 2pm), and it works.
Apparently having a time without food jumpstarts the body to burn fat and also to repair itself - i was impressed by the amount of research in Moseley and Spender's book. In the midst of finding a way to get my several cups of tea on fast days i started drinking it with unsweetened almond milk and discovered that a large part of the middle bloat was due to milk. I never suspected! I've also been drinking unsweetened smoothies every day, my bod really enjoys all that fiber and vitamins and good stuff.
My whole family really enjoys cooking and eating, and you can do that on the 5-2 and still lose weight. Dad and bonus mom have both lost 25 or 30 pounds over several months, while still eating all type of feasty food. A few weeks ago i called over and they were getting ready to sit down to homemade and homegrown poppers (deep fried jalapeno peppers stuffed with cheese and dipped in ranch dressing)!!!!! Bonus ma especially looks fantastic - just glowing, most likely because they eat a ton of fruit and esp. veggies on fast days. When you want to maintain your weight, you fast just one day a week. So for certain people it's a really great option.
If you're on thyroid medicine check with your doc about doing this (or any major wieght loss scheme) as your med levels in the body will change if you lose or gain much weight so your doses may require adjusting.
I have a number of chronic health troubles and nerve pain over a large part of my body, so i don't wear or buy anything very tight. i love lycra and soft knits! Getting some pieces that work well for you now sounds fine, punishing yourself is awful especially around something that's so much fun for you. There's so much that can happen which affects our body shape, and i mean really it seems kind of nuts to be a biological critter in an ecosystem going thru these wild loops and changes - cold, dark dark dark, dry - and not see it reflected in our bodies. Lord knows every other creature there goes thru massive body changes with the seasons - heehee, the ones that don't just chuck it all and migrate south!
One last thought. If food intake lingers too long in one's system, this may also contribute to midsection bloat. Exercise, fibre, plenty of water all make a big difference. But, if one needs a little 'push', let's say to counteract the effects of certain medicines, IMO nothing is more effective with no unwanted consequences than Natural Vitality CALM Magnesium supplement (get it at health food/supplement stores). Start slowly to gauge how much you need and Do Not Overdo - ironically this can also result in bloating, at least until the bloat *ahem* resolves in possibly spectacular fashion. (eep!)
Best of luck Una and everybody! steph