Ramadhaan & Fasting

Q: I have two questions:

1. During Ramadaan, while fasting I had a terrible migraine. I applied Makkah oil (green box medicine) on my forehead. Would the smell break my fast?

2. In Ramadhaan, while fasting I was in Australia. I had a running nose and used something like a Vicks scented tissue. I didn't know it was scented. Then I was confused where the smell came from so I blew my nose again. Only then I realized it was from the tissue. I think I could feel the smell going down in my nose. Is my roza accepted or must I make qadha?

Q: I masturbated when I fasted and I didn't know that that will break the fast. I can't estimate because what if I broke five fasts and I actually broke 16 fast. My estimation is less likely to be exact. What should I do?

Q: How this moon sighting thing works in different countries? Why eid is celebrated on different days by different people of country? The Hadith says not to fast on the day of eid.. Please clarify.

Q: Sehri time till is 04:03am but I not knowing ended my sehri at 04:10am. Later I found the correct time. Is my roza valid?

Q: As I have vaginal discharge all the time, when I shower I insert my finger right inside the vagina to clean the excess discharge. Does this break my fast?

Q: I would like to know can a woman fast during Ramadan if she is undergoing radiation for breast cancer?

Q: The fidya of my late mother, can it be given as sadaqa to any of her poor relatives? Or we can't make a niyya for sadaqa, it has to be given as fidya?

Q: I had 7 days that I needed to payback from Ramadan 2015 due to monthly menstruation. In Ramadan 2016 I missed paying back those 7 days and I did not participate in Ramadan 2016 because I traveled to Africa. For first time my intention was to pay back my fast there in Africa being the time would be less hours to fast and I usually leave it until 2 weeks prior to Ramadan. I was not able to fast or pay back missed fast because I found out I was pregnant and became sick with fever, nausea and no appetite. What do I do now that I have missed all those days of fasting and now I'm still having irregular bleeding on and off and I'm breastfeeding my 2 months old baby?

Q: Is there any basis for fasting the entire month of Rajab and Shabaan together with Ramadhaan?

Q:

1. I have read that one can only miss his fast if one is a traveller at sehri time. What will be the ruling of an individual who is travelling abroad but his  light is at afternoon time (meaning he is still at home at sehri time)?

2. If that person needs to fast, how will he do Iftar because different countries have different iftar times.

3. Also, will putting Vicks under the nose and sniffing it throurg out the day break one's fast? I have read that it doesn't because it does not have a body. Will that have the same ruling if one was to sniff Vicks from a tissue (i.e. putting some vicks on a tissue and then inhaling the subtance form the tissue?