"Injuries are over and I am fully recovered now," Zaheer who has a good performance record of scalping 125 wickets from 82 ODIs, said in Bangalore on the last day of cricket camp for pace bowlers.
Zaheer, who was forced to return from Pakistan in the midst of the series following a hamstring injury, said he had fully recovered from it.
"My current fitness is fine. I think I need to bowl more. I need some more bowling practice, which I have been doing in the nets now," he said.
The young speedster, who has also claimed 83 wickets from 29 Test matches, said he had not analysed the causes for injuries he suffered so far, but added, "I am analysing how to get out of injuries".
Asked to share his perception on his career achievements, Zaheer remarked, "I think I have done well at this level, but there is lot of more to do".
Commenting on his strenuous training, he said he was working on attaining rhythm in bowling and disagreed that of late, he has cut pace concentrating on line and length.
"I have not cut the pace. Any bowler wants to bowl in line and length consistently. That's what I am working on now."
Commenting on his short stint with Surrey, England, where he played a One-dayer and a four-day match, Zaheer said it was just a contract for three games as Pakistan's Saqlain Mushtaq pulled out due to injuries.
Zaheer said since he needed some match practices, he accepted the offer, but one match was not enough.
Justifying his decision not to play another four-day game, the speedster said, "I thought it is not proper time to play four-day match and I decided to take it off".
He, however said his visit to England was not to play matches but to get some training and added when he got a call from Surrey, he accepted it thinking that it would be beneficial to him.
Zaheer said he was elated at getting tips from legendary cricketer Kapil Dev, saying, "It is useful to get tips from an international bowler. Definitely, it will help me".
Kapil has been performing his job as bowling consultant training pace bowlers in the camp.