Anxiety

I've been having such bad anxiety since going back to work. I don't know what to do. My husband and I can not afford for me to stay home but I am constantly freaking out. My doctor gave me meds and they aren't doing anything. Is anyone else going through this? I keep having nightmares about work and being pregnant again. I constantly worry about ridiculous scenarios. My mind races all day and I get jumpy and sweaty with worry. I am not depressed. But I feel like this anxiety is ruining what should be a very happy time in my life. I get constant headaches and body aches too.