I Suffer From Constipation But Lately Have Had Regular Movements

I suffer from constipation but lately have had regular movements due to magnesium supplements and daily yoga. I went almost a week without bowel movements (after eating a lot of pasta). I have had multiple wet loose stool movements since then but have this feeling in my colon like there is a hard poop stuck. I don't know if loose stool would be able to get around but that is what it feels like. I constantly feel like I need to poop, not feeling movement in my intestines but my colon feels full and needing to release. Also, when I look into a mirror and push out , my anus is purple and swollen all around . I checked because I've had a hemmroid before so I wanted to check. What does this sound like? Could there be a hard stool stuck? Do I have Hemmroids or just irritated ?