Hi
@ce81ar, from my experience as a T1D, not professional advice or opinion: I am assuming you are using an insulin pump.
As you may know, the blurb on the pamphlet accompanying your Novorapid states that it has to be kept between (about 2) and 8 degrees C for long term storage. And is inactivated by being frozen.
And that out of the fridge it lasts about 28 to 30 days if kept under 30 degrees C.
If you cannot be certain that the Novorapid was kept between say 2 and 8 degrees C during air transport, and if the fridge you were using in Qatar was not keeping it within the required storage temperature it is possible that after the 3 to 4 week mark the remaining Novorapid might have lost its efficacy. Or perhaps in addition, if you were carrying a spare ampoule or several sequentially over the time of Novorapid with you it/those may have been exposed to temps > 30 degrees C.
For future it may be safer to actually plan to have Novorapid dispensed after say 3 weeks at your working destination.
And I am assuming that there were no cannula bending or leaking cannula episodes that added to or caused some of your troubles??
With my new Tandem Slim pump (one of the replacement options in Australia for the Animas pumps) there is an alarm for the insulin cartridge getting too near 30 degrees C (or zero degrees C) and another for the pump machinery temp reaching critical levels ( of course not nuclear explosion but breakdown of the electrics)!!
In Oz I have sometimes carried my pump wrapped in a towel with an ice pack in 40 degree C heat, as well as having spare insulin in the car in a insulated bag with ice packs, a thermometer and cool drinks)!!