Good morning @Jado, and welcome to the Sane forums. You will find others here who are in similar situations to yourself. Many people here who will understand and offer care and comfort to fellow carers, such as yourself.
Firstly well done to you for managing to successfully bring up a young family, maintain a marriage and family home, run a business and also lovingly care for your Mum. A major achievement.
Your Mum sounds like she is a very difficult patient to deal with, so well done in getting her to agree to seeing a psychologist. Definitely a positive step.
Its tough when you have so much going on, but next to no outside support from extended family. Do you have friends or work colleagues that you can confide in occasionally or generally just spend time with? I know it would be terribly difficult (with young family, a needy mum, and a business to run), but its vital that you take adequate care of you as well.
I understand you not wanting to burden your husband with your feelings and frustrations in order to maintain the peace. None of us like to unburden on others. But you do need someone you can unload on. Have you spoken to your GP about your situation and how you feel about it? If you havent already, I would suggest you do so. Your GP should know whats happening in your life and how you are coping with everything. It is a major upheaval to suddenly have your Mum living with you under a caring situation. It will definitely have an affect on you and the family dynamics. Its possible you may benefit from speaking to a counsellor or psychologist. They can discuss your thought and feelings and help you with coping methods. You can also access Government support which is available for Carers. I would suggest you avail yourself of those services. You will need time out for your immediate family and yourself at times. The support services are there for the likes of you, so please do consider it. You may think you can cope on your own, but for the long haul, you will need some assistance.
I know everything seems negative and difficult right now, but it can improve with appropriate support. I hope the psych appointment will help with your Mums hallucinations.
Quick background on me - I am a carer for my husband who has PTSD, Anxiety, Depression, Alcoholism, and recently diagnosed with terminal cancer. Personally I also experience chronic anxiety and depression as a result of PTSD.
I'm glad you found your way here to the forums, and I hope you benefit from the camaraderie of fellow members.
Sherry 
