I've recently been on 16 SF a day with other herbs. Yesterday i woke up after 8 hours sleep and felt so exhausted. Today I woke up with a scratchy throat, which turned to a really sore throat, dry cough, post nasal drip, headache, backache, neck ache and, now, laryngitis. I am almost giddy that this could be die off and that the protocol is showing signs of movement for me. I do not know for sure if it's die off, though. I am a little sad bc Matia had me stop the SF for now and I feel kinda like I want to keep going and keep things detoxing! Ha ha!