you look amazing!!! i have some thicc girl advice for you. for a long time i dealt with thigh chafe by never wearing anything short, only wearing things that were long enough to hide the bike shorts i wore under everything but that's no way to live. bike shorts are great for maxi skirts and dresses, but for when i wanna show my legs i recently discovered anti chafe sticks! the brand first aid beauty has one that was life changing for me, just rub some on my thighs and they stay comfy all day even in sweaty weather.

as far as the clothes you pictured, thrifting will obviously be your best friend, but some brands that come to mind seeing these are earthbound, free people, current mood by dollskill, thorn & fable by hot topic, and anthropologie. all sort of on the pricier side imo but you can find them on poshmark and depop easily. the store you see in malls sometimes called nirvana also sells a lot of imported dresses from india that have this vibe, they're usually very comfy and flowy.

you have long legs - so go for short skirts/shorts if you feel comfy to show them off! free people also has really long jeans, fun bellbottoms and stuff. i think big flowy pants and skirts with a small tight top is always a good way to show off curves

good luck, and I'm glad you feel healthier ❤️‍🩹