I hope you're okay mate, although you're not.
Just think positive about shit, your dog could be suffering of say old age or whatever he was put down from, but now he/she is resting, resting calmly. Also your mum, it could just be a one or two week thing, hopefully she recovers, don't think as it negative, think that things will get better, and that she will be fine, stay by your mum, treat her real good and care for her like she needs to be,
Good luck bro.