Welcome to the site. Glad you found us. There are quite a few knowledgeable people here who are very willing to offer advice.
You should re-post your questions in the sick fish section. You will get the most help that way. None of those are good signs unfortunately. Try to test your water parameters as soon as you can because knowing that is vital for people trying to help you as well as how big your tank is, what fish you keep, how old the tank is, the exact syptoms and any other info that you think would be helpful.
Two roads diverged in a yellow wood, but thankfully they both led to fish stores.