Update: Looks like is just an infection, a big infection, but an infection none the less. They are admitting her to hospital and pumping her full of antibiotics, this is better than what was first thought.
Hubby just got a call from his sister, MIL has collapsed and is being taken to the hospital. It looks like it was a stroke, we don’t know how bad it is yet. Hubby is on his way to the hospital now, work was not happy when he called to say he wouldn’t be in tonight.