Grand National-winning rider Ryan Mania hopes to leave hospital on Monday, when he will have a precautionary MRI scan after his crashing fall at Hexham.
Mania, 23, was taken by air ambulance to hospital in Newcastle following the fall on his return to action after winning the National on the Sue Smith-trained Auroras Encore at Aintree on Saturday.
The Scotsman was linking up once again with Smith in the St John Lee Handicap Hurdle.
However, his mount Stagecoach Jasper came down early on the final circuit.
Some 25 minutes after the race Mania was still being attended to on the track by medics. With the covers up, there was a delay to racing following the arrival of the air ambulance.
Mania was conscious following the fall and was put into the air ambulance on a spinal board before being taken to Newcastle Royal Victoria Infirmary for further assessment.
Mania tweeted on Sunday evening: "Thanks so much for all the messages. I'm grand. Staying in hospital to get another scan tomorrow then should be home. #highsandlows."
His agent, Bruce Jeffrey, tweeted: "News regarding national hunt jockey Ryan Mania, he (be) will detained overnight for precautionary MRI scan tomorrow morning. Will update tomorrow.
"Ryan and his family appreciate all the kind wishes and would like to thank you all very much."
Paul Struthers, chief executive of the Professional Jockeys Association, tweeted: "@Mania450 is in hospital with friends and family. He's awaiting scan results. Fingers crossed not as bad as first feared. He thanks everyone for their well wishes. Further updates when we have them. #getwellsoon."
Mania received what appeared to be a kick between his shoulder blades and was described as very sore before going for further assessment on neck and back injuries. He was reported to be in a stable condition.
Clerk of the course James Armstrong confirmed Mania had been conscious and talking after the fall.
The Great North Air Ambulance confirmed its aircraft based at Penrith, in Cumbria, attended and took the jockey to hospital in Newcastle with a flight time of just eight minutes.
A spokesman said the casualty had back and neck injuries which were assessed as "severe/serious" but he said his condition on arrival at hospital was described as stable.