I dont know whats wrong with me, i have a descent job that pays me decsent and have enought money to eat good.?

but sometimes if feel panic, im scare i might lose my job because some might make false acusations about me or jst get laid off because my sups feel like, even though im a superstar at my job and collect money for them every month and the praise me and like what i do, i feel like something is coming for me in theire, i always think about this at night and pray for something like this not to happen, but i feel like if im about to get backstab one day and get fired, my co workers say im crazy and think im on drugs because i panic alot. i jst started to feel like this , its scary, i dont know if is the recession that got me like this, but i feel like someone will get me, ive been feeling like this for 4 months, will someone help me, im trying to stay positive,sometimes im negative and sometimes im not, i need help??