Hi there, my dad had non small cell lung cancer, squamous cell. Although they couldn't find a primary site they believed it was the lung it had also spread to the liver, adrenal glands, lymph glands. My dad decided to hide his illness until the last month. I remember sitting with the consultant and asking my dad a question and him not answering truthfully. My dad was stage 4 at diagnosis and passed away 3 days later after suffering a pulmonary embolism. I wondered if my dads had spread to the brain, I've read it quite often does. My dad was not well enough at the time for chemo and was suppose to start 2 weeks later if he was more active. Could it be some medication that is causing the convulsions? It's an awful experience watching a loved one go though this. My dad has been gone 4 months today and I struggle with how suddenly it all happened. Based on statistics I would guess your mum is doing well as is she classed as stage 4 as its spread to liver? I think my dad was in denial and never really wanted to trouble anyone too much, either that or he was actually forgetting things. He'd definately had a personality transplant over time.

Thanks for the response and sorry for your loss.im starting to lrarn that to expect the unexpected!! Everyone is so different. Yes mums stage 4 we were told 6-8 weeks if she didnt have treatment. Its been the biggest rollercoaster of emotions since just dont know what will happen next