blenny

Found this interesting blenny (not sure but seems like it belongs to Blenniidae ),the tail and many features are different from Xiphasia ,a little bit like Plagiotremus , but still can't confirm what is this ? Can any guys help to identify it?

I came home and spotted my Blenny swimming around. I noticed two raised "pale" almost like areas on him. He seems to be breathing abit more and swimming just a bit awkward. I've noticed in the tank that a small blue eye tang is chasing him alot and has even pushed him out of his house. I don't...