Lotsa, I'm no doctor so of course, please don't take anything I say as gospel LOL. I have a somewhat jaundiced view of medicine because of my experiences. Anyway, I hope your mom starts to feel better!

Does she exercise and drink milk or eat dairy (for the calcium and vit. D?)

Hope you are doing well.
2/c and some 3A. Modified CG.
Protein sensitive
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Conditioners: Curl Junkie Beauticurls Strengthening Conditioner,
Deep condish: Curl Junkie Curl Rehab
Stylers: Experimenting with cones & sulfates while the dews are high.
Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift