She had been suffering from a bit of a cough off and on for about 9 weeks and had taken two courses of antibiotics without much effect. My parents spent Saturday out shopping with her, but come Sunday morning she called mum to say her ear was bunged up and she was going to the walk in centre so not to bother coming over before they headed back up to home.
She was diagnosed with a middle ear infection and told to take cocodamol and ibuprofen.
That afternoon she got delirious and her husband Simon called the doctor out who had her taken straight to hospital.
Not long after they had got home, mum and dad were called and headed back down to Southampton.
Jo was put into a medically induced coma in ICU to rest her brain, she had meningitis.
Mum called me on Monday and I headed down.
We had hoped that the swelling on her brain would come down and while brain damage would be likely, that would be something that potentially could be worked on, and we'd still have our Jo.
I now know that most likely she was already brain dead as her pupils were non responsive, but at the time that could have been due to the coma.
In the early hours of Tuesday morning they stopped the sedation and ran some tests which didn't look good. That afternoon they confirmed she was brain dead.
Jo was an organ donor, and it looks like they found at least one match for her organs so hopefully she has spared another family the pain we are all going through.
We are all devastated, although her daughter Poppy who is only 4 is too young to understand that mummy isn't coming home.
Work have been so supportive, as have my friends.
If you ever feel that saying you are thinking of someone isn't actually much help, believe me it truly does help, just knowing that people care.
If you have ever thought of being a donor but never got round to registering, the link is here.
Knowing that Jo's death meant the possibility of extending someone else's is a great comfort.
She also supported the charity Reach as amniotic banding stopped Poppy's right arm growing much more than her elbow.
Cherish your loved ones, call them and tell them how much they mean to you.