LINAGLIPTIN REVIEW

i have been doing some random screening of reviews posted on various websites regarding tradjenta.
this is what i have come across as feedback from some patients
1.increase in sugar values
2.drowsiness
3.itching.
4.light headedness
5.breathlessness
6.back pain.
i am not sure if these symptoms are related to the drug or just individual variations.
any body here using linagliptin?
any side effects till now?
any change in sugar values?