Hi Welcome to HCM Dear ,your mom s trouble must be due to any of these factors Bacteria, viruses or parasites Food poisoning Consumption of irritating food, drink or medication Overeating or overdrinking (especially alcohol) Stress or anxiety or sleeplesness or One more factor is that not very many people think of - is displacement of your naval , which in naturopathy naval is considered to be spindle on whith wheel of our digestion system moves. How you can know our naval is displaced ? lie down on floor or on hard bed straight on your back put feet together,body loose . bring tips of all fingers together and press on center( Surya kendra )ofyour naval . If pulse is there , it is right position ;you don t feel any gastric problem. If it is not there, it should be anywhrere around . That is an unnatural position and cause of gastrointestinal disorder . We can rectify this by some yogic postures as --bhujangasan --Shalabhasan --Gomukhasan mandookasan etc iIt is conductive to promote the gastrointestinal mobility, improve spleen and stomach, and assist digestion because of the large degree of systolic and diastolic movements in the abdominal cavity . Do not stop taking insulin, even if you are unable to eat solid foods. Take lemon juice with water sip by sip many times a day . Don t gulp Give her husk of Isbgol with cold water or juice Give her 1 banana chew well and eat Eat light food . Khichdi with curd next day .. Little food 2 hourly Mint is good for vomiting tendency , eat and sniff . Can take Homiopathic Arsnic 30 /1/2 hourly/3 times IF symptems still persist call on your doctor fo assistance Hope this helps you solve your query . Take care .All the best Don t hesitate to get back if have any further query