Good for you for that writing!
Be sure your doctor who has dx'd you with bipolar understands you have ptsd, and understands how to treat it. I won't say that you aren't suffering with bipolar disorder, only that PTSD causes swings that might be mis-diagnosed if the doctor doesn't realize this??? I'm sure there are people who have both though. I hope you are also receiving treatment for the PTSD, as it doesn't get better with time.