Your question is completely different because it is very specific based upon the fact that you are suffering from pain and discomfort. If you feel the same way I did at one time then you undoubtedly are willing to pushed the boundaries of moderation to get a cure especially if you have nagging pain.
For gallbladder pain a week apart on occasion is fine. When I started I did two in a week because I could feel that I had sturd things up. When I had nagging shoulder pain due to a rogue stone it took a long time shift. This indicates that sometimes flushing more frequently can be beneficial and other times despite giving temporary relief a stone will only come out when condition are just-so.
If I were you I would go ahead and flush in an attempt to get rid of the pain.