Wudhu

Seeing blood on one's clothing after performing salaah

Q:

1. After I had passed stool, there was a lot of bleeding in my back part. I wiped until I saw no blood on the tissue, then took a shower, then prayed dhuhr and asr prayers. Then at maghrib I went to the bathroom, and saw even more blood. Do I assume that the bleeding started again after I prayed asr, or do I assume that the bleeding was going on the entire time and therefore I have impurity all over me (because I showered) and my prayers are invalid?

2. Also, I often have bleeding in my back part and the toilet tissue we use is not clear white - it naturally has yellow/brown/red bits in it (I think it is because the tissue is recycled) and this makes it hard to tell if something is blood/stool or just the normal color of the toilet paper. If I wipe until the toilet paper comes back clean, then wash myself, then check again using toilet paper, however during the check I notice some spots that I'm not sure is normal color vs blood/stool, so I check again, but this time the toilet paper is clean, can I assume I am pure?

Blood going down the throat unknowingly

Q: My gums are sensitive and bleed when I brush my teeth. I try to not swallow when my gums are bleeding however some saliva goes to my throat and since, short of actually throwing up, it would be quite difficult to get that back up and out, I end up swallowing whatever escapes to my throat. Also, my gums tend to continue bleeding (very lightly) for hours afterwards and not swallowing at all for that long seems near impossible. I don't swallow whatever remains in my mouth, and I try to not let it go to my throat. Am I sinning?

Frequent nose bleeds

Q:

1. If one has frequent nosebleeds and wipes inside his nose with a tissue until one sees no more blood on the tissue, then later clear mucus comes out, is the mucus impure?

2. Is one allowed to sniff mucus into the throat at this point?

3. After this, does the person have to rinse out their nose before making wudu?

4. Also, when rinsing out nose after a nosebleed, does one have to blow their nose or can they just let the water flow out (when blowing inevitably leads to impure water spraying everywhere)? Is it okay to rinse it out just once?

5. Lastly, if the water one draws up the nose goes into the mouth/throat, does one have to wash the nose again? Does one have also wash the mouth, if they feel the water go into the mouth?