Hi Clare...I often get these cramping pains in my ribs too...it feels as though one rib has moved over the other...and takes a long painful while to come back to normal...I often get it when I bend over to put my shoes on...or like your mum...if I twist my upper body...i.e. reversing my car...(my doctor couldn't understand it)
I also get leg cramps...(especially if I stretch at night in bed)...and have had cramps in my hands too...I've no idea what the cause is...so I'll just share what helps me. I'm not a great fan of doctors and drugs...(they just seem a waste of time to me)...so I've been using homeopathic remedies for years...(no side effects)...I take Cuprum Met for cramp...(it really helps)
For trapped wind and bloating I take homeopathic Carbo Vegetablis...or Nux Vomica. My wind and bloating come on if I get upset or stressed...Nux Vomica is really effective for stress...and Carbo Vegetablis helps with wind. Maybe your Mum could see a homeopath...if not...a good chemist should stock homeopathic remedies.
How lovely that you care so much for your mother Clare...maybe it'll ease your worries to know that I'm 68...and have had these symptoms for many years...but I'm otherwise very fit...and still very much alive.
PS Water...and apples also help.
Much love to you both
Effie