I would strongly advise against QATAR Airways, as a woman travelling with an infirmed partner, and especially caution against a stop-over in QATAR.
I have a close friend whose daughter was travelling qatar with a 12 months child. Child had need for a medical device to be available in journey.
Written approval to carry device was obtained from airline before departure from Europe.
In Qatar departing she was on board and was offloaded by security as crew didn't like the med device. Taken to small run down hotel without either her or childs bags nor hand luggage, and told she maybe able to travel next day/later but no one could say for sure. When she asked for hand luggage with childs med and childs special food, in not given to her. Told that if she rang embassy she would never be provided with a flght out of Qatar.
The lady is a very capable and sensible woman and not easily frightened, but she was very frightened but held it together.
Flown out on next day to destination.
Beware!!