Please answer this for me... Guys especially?

Okay so this question has been bugging me for a while now and I would really appreciate some opinions. I am 5'8" and 148 pounds, in October I tore my meniscus in my knee and haven't been able to run or play soccer for almost 8 months now, which up until I got hurt I did everyday. I have always been fit and little, and now I have been gaining weight since I can't run or exercise I am feeling a little self conscious... Is this considered fat? Please let me know what you think and if this is an acceptable weight or not