You can claim your rights and your life by contacting law enforcement about this stalker reappearing in your life.
Should you do the story and put your name out there even more? Well, as someone who has been politically active, and stalked, and a former reporter, I can understand the dilemma.
Even if you didn't have PTSD and social anxiety, I would tell you to handle any new media with extreme caution. Meet with the reporter and discuss your concerns with them. Evaluate how objective they are and expect whatever article they publish to be different than you expect.
Ask if the reporter agrees to interview you but not put your name in there. I have been anonymous source to the papers. But be careful with even this -those that meant me harm still figured out it was me. Thankfully the danger from others not as bad as I feared.
However, I would hesitate to be a known source in major news media with as much anxiety as you have. Seems like the stalker already knows where you are but the simple act of being that well known in the papers even with safe people could push you back into extreme isolation.
I would instead help the the reporter connect to other sources and people at the protest who can speak out for the cause just as much as you can - if there is no one - find people willing to learn and be a spokesperson.
I caution you about letting the paper use you specially to sell more papers at the risk of making your anxiety worse - but I also don't think you have to be silent about what you care about. Instead make the cause known in through other means that keeps you more protected and let's you preserve some of the anonymity that helps you manage your symptoms from day to day. This will probably help you do even more to fight for the cause you care about so much, because you won't risk flaring up symptoms enough to be taken out of the battle, but you also get to do something to help educate people and not be silenced.
