Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
I will advise your mother to undergo repeat endoscopy
to see the status of ulcer, and if it is not helsed till now, then biopsy
of the ulcer and test for H.pylori.
Generalised weakness and pain in kegs may be due to side effects of tinidazole
What is required is replacement of tinidazole with amoxycillin
if she did not for repeat endoscopy now. But after receiving 14 days of this treatment her symptoms are not relieved then please go for endoscopy to see the status of ulcer
I hope I have answered your query and this will help you. Remain in touch and get-well soon.