Irregular sugar level. Available here.

My mother is having diabetes and thyriod as well. she has been doing well in the treatment , but from last 4 days the blodd sugar level is consistently showing lower level after meal. 15th may -97 (randomly done test in evening )                         (hence given 2 sweets to eat) 16th may - 100 ( done test in eveningsame time)                            (given 1sweet to eat) 17th may- 83 (As she was feeling exhausted and anxiety, gain perform the test hence found the respective value) now, perfomed a proper pre food and 2hrs after meal test on,18may the results were:- pre meal- 106 after meal- 88 Today on 19th may , she was feeling again the same as day of 17th may , also did vomit the whole food she had for lunch. Therefore again performed the test and found the result as :- 76 ( hence given 200ml ors and 100ml sugar mixed water) please give me proper guidance as soon as possible,as we live in a rural area no endocrinologists or diabetologists are available here.