Recived Dexsametasone Phosphate shot for my Plantar Fasciitis for the first time. Several days received Delayed Reaction of all these side effects: Panic attacks, Anxiety, Sleepless, Hyperness, Nervousness, muscle tighting of my stomach, vomiting (only twice), paranoid. Was told that I must ride out this drug and so far it has been 1 week of pure Hell and am going into my 2nd week. I was prescibed some medication to just calm now my nerves until this leaves the body.