doodlebug1501

okay ive been diagnosed with ptsd which i cannot figure out i do not fall under the criteria of this but my question is this : do you have to have all the symptoms or is it if you fall under at least one symptom do you qualify for this diagnosis? my therapist (that ive only seen twice has come to this conclusion and i dont see it) wants me to look it up and if i disagree with it i have to show validity to why i dissagree. ive been researching for days and all ive accomplished is that i only meet one of the symptoms but at a stretch . i was molested by my father for 4 yrs in my childhood and this is what my therapistt has diagnosed me to have but i totally dissagree i need some sites that anyone can suggest. im looking for a free testing evaluation i can do online. or any references i can look up.