The Danish striker suffered an ankle injury during the 3-1 win over Birmingham at The City Ground last month and is well on the road to making his return for The Reds.
He said: “I am on grass again, doing drills and twisting and turning to see what the ankle can do. It looks very positive and the important thing is that as long as you are out on the grass the comeback is not far away. Hopefully I can keep free from other injuries, let this heal and progress.
“It was a massive blow, I thought it was broken. Luckily it was not bad and I can come back now and it has given me a lot of confidence and belief.
“The thoughts I had on the pitch was far from coming back so soon, and the disappointment of working so hard at a new place with new team mates, getting to know everything and taking in all the different aspects and finally getting where you want to be, then to get that injury was very bad.”
Bendtner has been impressed with the set up at the Nigel Doughty Academy since signing in September and felt he was just starting to hit the ground running before his injury.
He scored his first goal for the club in the 1-1 draw with Fulham on September 27 and played against his former club Arsenal in the EFL Cup.
He said: “It was important to get the first goal. It was a long time since I last scored. I planned a celebration but as the ball hit the back of the net it didn’t come off like that but it was nice to get that goal.
“The Arsenal game was emotional as I spent eight to 10 years there and know all the boys. Arsenal means a lot to me and it is a club that I will always have something special for. It was a big moment for me to play them in a competitive match. The reception I got from the fans was unbelievable and I was very pleased.”
Bendtner now hopes to get back playing as soon as possible and help Forest string together some results to move up the table.
He said: “The game I got injured in I felt we were really strong and it is a shame that we didn’t back that up as it could have been a real turning point for us.
“The QPR game we should have won and it is one of those ones where the other team has the little percentage over us and we need to cancel them out and be really strong.
"We have the team to do it, the manager and staff to do it and for that to succeed.
“It was a positive start for me personally getting back fit and starting to play. As a team we have had our problems and we are looking to get out of that as quickly as possible and everyone is working 100 per cent to do that. It should only be a matter of time before we bounce back and start showing our true colours and what we are capable of doing.”