Phalaenopsis leaves fell off, bugs in root

[chacheng]

Hi,

So yesterday I noticed that the top leaves fell off (they were still green) and underneath was a leaf half rotting that also fell off (picture below) and another leaf that is very yellow and also looks rotting. A couple weeks ago the bottom leaves were yellow and fell off as well, but I thought this was normal. The flowers started to die about 4 weeks ago and now the final ones are shriveling up. What I am really concerned about as well is that where the leaves are connected there are tiny like silvery/white bugs crawling around... (picture attached if you can see them bugs) Attached are some pictures. What do you guys think I need to do?

This is my first orchid. I'm not sure if I even know which kind it was... my boyfriend gave it to me and he said he didn't know what kind it was... I got this plant about 4 1/2 months ago and everything was fine until around the beginning of December when the leaves started to get a little wilted and wrinkly, I thought this was a watering problem because I left it without water for about a week... but since then it seems to have gotten worse.