Can't slow to crawl without sinking - help!

[Pisces]

I'm not sure if this is normal or if this is the result of damage received. But maybe you should consider this a suggestion of quiting while you are still ahead (= alive). The north sea isn't that deep to hide in. (I don't know how deep it is there.) Better to go home I think and patch her up for a new patrol. You probably lost quite some hull strength.