pavsid

Hi all, recently started vaping and making my own vape. Still on my quest to create the perfect juice, but one thing that's been troubling me is that if I leave my vape to settle for a while, either overnight or for a while during the day, my first few drags are quite harsh at the back of my throat both on the inhale and the exhale, with less smoke. But then after 5 or 10 drags the smoke thickens up, tastes better, but I can't feel enough of a hit. Anybody experience the same? What's the cause and/or solution?