I have been feeling all of these symptoms for about 2 and a half months now. I am an 18 year old female that weighs 166 pounds and is 5'7'' Dramatic events have happened before these 2 months. Lightheadedness (constant), Chest wall pain (sometimes) tunnel vision (sometimes) dizzy spells (sometimes) heart pvc's, shortness of breath with exercise (each time) (sometimes) blurred vision, dimmed vision, fogged vision (sometimes) neck pain (sometimes) shoulder pain (sometimes) full spinal back pain (sometimes) rib cage pain (sometimes), pelvic pain (sometimes) hair loss, heavy periods, tension headaches (sometimes), ringing in the ears (has happened 5 times in the past 2 months), heard pulse inside right ear (once), whooshing sound in right ear (once), constipation (constant), diarrhea (sometimes), nausea (sometimes), severe depression (thoughts of suicide),extreme anxiety, feeling nervous and anxious every day. Can not focus well. Not sleeping well, feeling sluggish almost everyday. Wake up in a panic while sleeping. Constant thoughts that I may have a brain tumor or some kind of cancer. Random out bursts of crying and hyperventilation. Intense fear that I am going to die. Normal blood work, normal EKG, normal urine test. Normal retina eye exam. I have very minor astigmatism, not enough to need glasses though. Going to get a chest X-ray and a CT scan of my brain soon. I've also lost a great amount of weight these past 7 months due to joining Weight Watchers and constant exercise. I lost 50 pounds in 7 months, is that too drastic? Ugh. I'm so paranoid about everything. My dad works as a doctor in the ER and he still thinks that all my symptoms are due to stress, shock and and anxiety. I feel like I need to have every single test done though to rule out anything serious =( I'm sick of this intense fear. Any suggestions on what further tests I should get done?