I was so glad to find your site- I have been looking through the internet wondering if anyone has experienced anything similar to what I have been going through. Since starting botox injections a few years ago I noticed I was getting colds and flu a lot more, then after the last injections, a massive dose of flu which has totally knocked out my immune system. I have had a sore throat, swollen red tonsils, exhaustion, joint pain and insomnia for about a year, it's been driving me crazy and I really strongly feel it is a result of the botox- I lead a really healthy life otherwise. Looking back, each episode of flu followed the injections by a few days. I have been taking vitamin B1, B2, B3 and B6 which have really helped, especially with the insomnia and anxiety and general twitchiness. I am hoping over time things will get better- the ironic thing is I feel about 50 years older since having the botox!