I went through the same thing, forward and back in progress. I was pretty normal at 6 months and returned to work. I am off again in my ninth month but it get's less severe each time and I remain more functional albeit still uncomfortable but better each time.

Stay strong and positive, it takes time and some less than others. If not already you may want to keep a daily journal of symptoms. It helped me greatly with my Dr. visits as I would actually progress and not realize. Sometimes it felt like I was getting worse with new symptoms but the reality for me was that some of the overpowering issues were fading making me more observant.

Stay strong, keep faith and celebrate even small victories.