naseua and insomnia are some common side effects when first starting taking paxil (seroxat). they usually go away within a few weeks. But, like Echo said getting off paxil can be a harsh experience- for me it was terrible. The severity of withdrawling from paxil varies from person but it is not uncommon to have an extremely difficult time stopping taking it. It was very difficult for me--also like Echo, paxil worked very well for me, but I shall never take it again. I had never experienced a panic attack in my life until I quit paxil. Also, I had very strong electric shocks in my head-- these weren't the shocks commonly described- like mild static electricity across the brain- mine were actual electric shocks- it was very disconcerting to say the least. Even when tapering off of paxil slowly these symptoms can be experienced.