Hi Mandy! So sorry that sweet Betty is once again having an issue, I know it must be so frustrating! I'm not experienced enough to give any advice BUT I've read all your posts about Betty, I love her and always think to myself "thank God Betty has now such wonderful, loving parents" It's evident in your photos posted, your words, etc.
She's had top notch care since becoming your girl, that's been 3 months or so. Maybe she just needs a bit longer, consistent care before becoming issue free. Just my heart's thought. Hang in there, vent as often as you need. You've got friends here that will always listen. Peace friend!