Hello Lillyann,
I am sorry that you like so many of us on TP have come this point of realisation that something is really amiss. Suddenly all the odd little things that have been happening or have been said begin to build a picture. With my dad I now realise that his dementia had been masked by himself very cleverly for quite a while.
It must be a sad day for you. I guess although it will be difficult you need to talk to your mum about visiting her gp with you. I am guessing you have not done that yet?
There can be a lot of support out there, especially if you are pro-active an it sounds as though you are.
I have a memory nurse visiting through gp. He is going to support my dad. I have an appt for myself with gp, as I am struggling as full time lone carer. Dad's gp offered me an appt during her admin time to talk to me. I nearly cried with relief.
The Altzheimers Society are good, and gp recommended Age uk as well. There are local memory groups here for sufferers and carers. I have researched myself. I have also applied for attendance allowance.
It sounds like it is early days yet, you have a long road ahead, but just use all the support and resources available. There is no rush, just do what you can each day.
I would advise you to get lasting powere of attorney though for health and welfare and financial matters. I think I have left it too late.
I hope your visit to your mum goes better than you expect. Hugs