False Negative..?

I have had weird symptoms on my penis for over a year now.. I was tested about 4 months after I thought I had contracted something, and everything was negative, however I was not tested for HSV-1/2. I recently (about two weeks ago) was tested again, this time for HSV. It was done with a blood test. My doctor said I tested negative for everything again, including HSV-1/2. I had been taking L-Lysine to help get over being sick (cold/flu/whatever) in probably a 3-4g a day dosage. Would there be any way I tested falsely negative? It seems like I have symptoms that sound like herpes, but test negative and I am worried. I am in a serious relationship and have not passed anything on to my girlfriend over the course of a year. It has been over a year and a half since I thought I contracted something.

Could there be any reason I would have a false negative blood test?
Thanks in advance...

[gracefromHHP]

No, taking lysine won't affect your blood test results.  Continue to follow up with your provider to try to figure out what is going on with your penis.

grace