I'v had morning sickness during my pregnancies before. I have thrown up with it too. 
Well that's no fun.  How long does your morning sickness usually last?
My morning sickness usually last between the 4th and 16th week of my pregnanies , but it could vary
The rest of your pregnancy typically goes well, though?
oh  my yes, ! It's generally I feel this way because of the fluctuation in my hormone levels :)
My wife had some bad back issues with both of her last 2 pregnancies.  Do you ever have any problems with that?
I'm not sure about the back issues but pain in the stomach fever or headaches are not most present during morning sickness
Did you have a lot of indigestion?  That seemed to be another thing that my wife struggled with.
Morning sickness
Morning sickness, also called nausea and vomiting of pregnancy (NVP), is a symptom of pregnancy that involves nausea or vomiting. Despite the name, nausea or vomiting can occur at any time during the day. Typically these symptoms occur between the 4th and 16th week of pregnancy. About 10% of women still have symptoms after the 20th week of pregnancy. A severe form of the condition is known as hyperemesis gravidarum and results in weight loss.
The cause of morning sickness is unknown but may be
The words Chahar Shanbeh mean Wednesday and Suri means red. Bonfires are lit to "keep the sun alive" until early morning. The celebration usually starts in the evening, with people making bonfires in the streets and jumping over them singing "zardi-ye man az toh, sorkhi-ye toh az man". The literal translation is, my yellow is yours, your red is mine. This is a purification rite. Loosely translated, this means you want the fire to take your pallor, sickness, and problems