Let’s start with some basics. A pistol being that available should be one of the first things you attend to. As you are going through the need for medication and the potential results, let’s err on the side of caution and get guns out of reach — in a locked cabinet if you still want them in the house.
Your mother’s reaction to your need tells us a lot about her. She cannot be the person you rely on in an emergency. Get a list of nearby people you can trust who can be there for you in a crisis and let your son (and others in the house) know who they are. List those numbers near all the phones and plug them into yours and your children’s cell phones.
I would highly recommend these precautions now and plan to meet with a family therapist. You can find a qualified person near you here. You will want to sort through what happened with this therapist. Your mom needs to be educated on how to help and not escalate a situation. She is the one that aggravated the situation to dramatic heights by inciting you while you were in your state.
Wishing you patience and peace,
Proof Positive Blog @ PsychCentral