Area below the navel becoming exposed while making tawaaf in ihraam

Q: When wearing the ihraam cloth and making tawaf around the ka'bah, I am afraid that part of my awrah (just below the navel) will be visible at times, especially when flipping the cloth to the idhtibaa' position etc, since I am not used to wearing this cloth. If my awrah shows, will the tawaf still be valid. Will I have to pay any compensation for it?

Parents receiving the reward of good deeds carried out by their children

Q:

1- In a bayaan it was mentioned that the parents receive on going reward from their children after the parents leave this world. Please explain whether this is correct?

2- A brother (who has children and their mother, has passed away) asked if the good deeds his children carry out will be rewarded to the woman who he marries , because that person will play the part of a mother?

3- Also if the brother marries again and if the new wife gets the reward of of his children, does that effect the reward for the real mother of the children who has passed away?

Being possessive over one's wife

Q: My question is regarding my own personality which I think is like a dual personality or I am a selfish person. I love my wife and respect her as well but when I see her speaking to family members, I feel jealous. I mean even if she is with her brothers and sisters I get upset and I get stressed. I pray five times but still my mind is at unrest. Please I need your help.