Aberdeen got some good news ahead of today's meeting with Celtic when goalkeeper Jamie Langfield was given the all-clear from doctors 18 months after suffering a brain seizure. He was out of the first team for the majority of last season but is very happy to see his team challenging at the top of the SPL. Langfield has been an ever-present this season and could celebrate his news by helping Aberdeen go top of the SPL a the end of the early kick-off game. Langfield said: "It was a massive relief off my shoulders. I am so happy the worry has finally gone. It is a good thing for my family as well. The support I have had from the fans has been amazing. I had a lot of good luck messages from fans throughout Scotland, but the Aberdeen fans have been brilliant and I cannot thank them enough. Their messages got me through some dark times. I am just glad I have got through it." Events such as his brain injury has changed Langfield's attitude to football. He went on: "I don't look to the future as much now. I take every game as it comes. I am really enjoying my football. I am really enjoying being at the club. We have a great bunch of lads in the dressing room. Coming into work every day is very enjoyable. With my health scare now behind me I can now enjoy my football even more. What happened certainly puts things into perspective. I don't think I have ever enjoyed my football as much. It has always been in the back of my mind that something might be wrong with my head. Now I know there's nothing wrong with me it gives me another boost." Aberdeen's form is another major reason for Langfield's positive mental health. The Dons have only lost once since their opening day defeat at Celtic Park. Langfield was at fault for Kris Commons' winner but manager Craig Brown stuck by him and has been rewarded for his faith with a string of impressive displays, including six clean sheets. Brown said: "It is nice to be here sitting talking about a top-of-the-table clash. For the past few seasons we have been down the other end of the table. We are where we want to be, challenging for European places. In the league we are looking down now and not looking up which is a massive difference. As long as we keep doing that we will be happy but no one is getting carried away."