I too had digestive problems, muscle tension that led to a 3 week headache, leg cramping, twitches mostly in legs (but not constant), sweats, insomnia, loss of appetite, all this led to depression.
Not trying to scare you,
but let you know that physically,
anxiety can wreak havoc on you mind and body. Get help now. Finally a doc told me I had GAD and gave Celexa (SSRI). It didn't work so now I'm trying Remeron.