Paul Kitson is desperate to rejoin Albion's fight against relegation.
Kitson broke down with hamstring trouble in training last week and has been limited to just four starts due to a series of injuries, which have also included back and rib problems, since joining this season.
The striker maintains he just wants to do is get back and fire in goals to lift the Seagulls out of the bottom three.
He said: "It has been frustrating. My back was the main thing to start with but I have picked up a lot of niggling injuries, I did my hamstring in a reserve game last month. I saw a specialist the other day and told him I tried it in training but he said it was no good if you come too quickly as it would put me back two or three weeks.
"All I want to do is go out and play but when you are stuck in the treatment room day in day out it drives you mad. There is nothing you can do."
The Sports Argus published letters by fans who questioned his fitness record.
Kitson received taunts from supporters when he came on as a substitute in the draw against Portsmouth at Withdean last month.
He said: "Since I've been out and come back they were obviously been sarcastic every time I touched the ball, which is disappointing.
"It is their opinion. If they put as much energy into getting behind the team instead of putting negative energy in having a go at players for whatever reason we might win a few more games. It's not like they were having a go because I had been playing badly because I haven't played. I think it was stupid personally.
"All I want to do is go out at score a few goals and shut a few people up.
"I scored a few with John Hartson when I was at West Ham and they were in a similar position. We needed to win every game to stay up and we managed to do it."
Portsmouth have seven players with first team experience in their squad to play Worthing in a friendly at Woodside Road today (12.00).
Portsmouth: Alex Hards, Jason Crowe, Jamie Vincent, Tom White, Carl Tiler, Lee Molyneux, Neil Barrett, Courtney Pitt, Lee Bradbury, Luke Nightingale, Markus Heikkinnen.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article