You've come to the best place around for information and support. The posters here are generous with their knowledge, so bring on any questions you may have.
If you haven't already done so, type
photodynamic in the search box in the upper right of each message-board page and hit the Go button. You'll get three pages of results, including two
substantial threads. A followup to the first thread is
here.
These threads were started by people who have had PDT. Click on their names to get their profiles -- you could send them an e-mail or a private message for additional details.
More links about PDT are available
here and
here.
There is a separate search function for the main part of the OCF site. Click the gold "search" link at the bottom of each message-board page to get to that search engine.