i don't know why I have anal bleeding?

I has surgery for hemorrhoids in the beginning of the year. I wasn't bleeding I just had a huge bump on the outside of my anus. About 3 weeks ago I was on the toilet to take a number 2 (bowel) and i was bleeding. It was bright red, lots of blood and blood clots wither i was passing a bowel or sitting i noticed it. I wanted to no if it was normal because the first time i noticed the blood i was staining but it's been times after that I have been fine and i still bleed and still see blood clots. Just about a day ago i felt fainted and pain in my chest. Should I go to the hospital and get checked or is it something I can do at home.Thank you