Lumps and Bumps - What do you do?

We're sliding into home on week 2 of "Single Mother of 5". The puppy is substantially more potty trained than he was. The older dog has been good, but found a neighbor's chicken hiding in our landscaping yesterday... and did his bird dog thing. Whoops. The mares saw the farrier on Monday (and I really like him, he did a great job).

#NOFILTER

Horse wise, beyond the farrier, I've spent a lot of time staring at Foxie's butt and Arya's leg. Foxie has been kind of... lean lately. And I can't tell if it's a food thing, or a "I haven't been worked in ages why would I have muscle" thing or what. She doesn't actively eat as much as the younger horses, but even when given a regular hay net vs a slow feed net doesn't "clean up" her usual serving of hay. I tried a couple of days of electrolytes  - no visible difference, but lots of pee - and am doing a course of Sand Clear just to make sure I'm covering all my bases before I increase her grain or add something like rice bran. I've been giving her a flake of higher quality hay in with the regular stuff, but she's still wasting plenty (I can't tell if she's dropping it or sorting it out) of hay, so I feel like I need to increase her night feed instead of adding more hay. I just want the butt to stop looking so... angular. So she probably needs to go back into a lunge routine again, too.

Arya's leg has also been a problem; the girls farted around and she did a whole lot of food-aggressive chasing on Sunday night before hubs left (I was late to feed) and Monday night she had two diagonally swollen legs. The front went down the first night and has stayed down. The left hind, however, is becoming a far too familiar friend. I've been wrapping her in BOT and feeding extra MSM; so far she's been sound, and most days the swelling goes entirely down with a BOT standing wrap over night and re-appears throughout the day when she's out wearing a normal fly wrap.

She's been sound, so I've done some light riding a few days and let her canter a bit during our last ride since we've been sticking to walk/trot only the other rides. We ride in support boots with liniment, and cold hose after. The darn swelling just won't go away, though. It looked pretty amazing this morning - I finally broke down and gave her a gram of bute last night, and another this morning. I'm interested to see what the leg looks like by turn in time tonight. Maybe I can be done doing standing wraps!

Legs. oldest top left, newest bottom right.

It makes me wonder, though; what would you do? When do you call a vet? If it's tendon related, I feel like I'm following the usual instructions - cold hosing, wraps, keeping her from stomping the leg to smithereens and while maybe a vet might not recommend riding, I feel like I'm keeping her stretching and from doing too much running in the pasture. To be honest... I don't want to pay for a vet bill right now. I will if I need to, but I don't want to. You know how it is.

We're all still (mostly) in tact despite me being all by my lonesome, and I'll call it a win!