2 months in Fin, sex drive increase

The first couple of weeks I started, I didn't notice much of a difference in my libido at all, then it may have dropped slightly for a month, and then completely disappeared for an entire week (though this all could have been influenced by external factors), but in the last 1 1/2 to 2 weeks it has come back like crazy. Possibly stronger than it was before I started taking the drug. Has anybody else experienced this? Did it balance back out? Is this potentially a sign of anything negative?