Do these things carefully as I say-
1. Give her a glass of water
2 . For now, give her1 pantoprazole ( 40mg) [ pan(40)] tablet.
3. Breathing and restless problem can be due to many reasons, best option would be to take her to a nearest hospital/clinic. Her condition cannot be assessed completely via online, as breathlessness and feeling restless can be due to both serious and not so serious reasons.
Next Steps
I think taking her to the nearest clinic would be the best case scenario
Health Tips
Don't delay, if it's from a serious cause, delaying might be harmful.
I wish ur mom a speedy recovery .