Sajda-e-Sahw

Q: If a person fulfilled all his past sajdah sahw as a single sajdah instead of 2 sajdas due to ignorance of it, will qaza have to be made? 

Q:

1. If in namaz, just before saying salaam, either my head is on the right side or left side, if I unintentionally say Allahu akbar and then say salaam, is my namaz valid?

2. If I need to do sajda-e-sahw in this situation, how do I do it? I have alraedy recited attahiyyat, durood and dua and then before salaam I unintentionaly did this.

Q: I forgot to recite a surah after reciting surah faatihah in the last rakah of witr salaah. I also forgot to recite dua qunoot in it. Will it be sufficient for me to perform sajdah sahw?

Q: We missed the surah in salaah. What should we do?

Q: I have a medical condition that has me in continuous pain. At times, due to the medication as well as the pain, I lose count of my rakaats read in Salaah. To be safe I read an extra rakaat when I’m not sure as well as make sajdah sahw. Is there anything else I can or should do?

Q: During salah, I frequently forget any fardh and due to which I do sajda e sahw, am I correct?

Q: I always feel like I did a mistake in prayer so I always prostrate twice after I say salaam. While I was doing prayer today, in my mind something came that said if I prostrate, I prostrated to something other than Allah but I still prostrated. Did I commit shirk?

Q:

1. I usually take the least number of rakaats when I totaly get confused in the number of rakaats of salaah and complete my salaah. I don't sit for tashahud in every rakaat in this case but I do sajda e sahw in the end after reciting tashahud by saying salaam to the right side and then two prostration of forgetfulness and again tashahud then durood and dua and then salaam to right and left. Is this the right way?

2. If not, what is the ruling on my previous salaah?

3. If it is wrong what is the right procedure?

Q:

1. Reciting faatihah after tashahhud in second rakaat of a four rakaat salaah. Do I need to do sajda-e-sahw?

2. Reciting tashahhud after faatihah needs sajda-e-sahw?

Q: Is it right to perform sajda-e-sahw if someone forgets to make it within salaah? When I remember, without reciting anything else, I just to sit down and recite attahiyyaat upto (abduhu warasuluh) then one salam on the right side then two sajdahs of sahw and then attahiyyaat, durood and dua and then 2 salaam.