My elderly mom has been experiencing these symptoms every morning: shortness of breath, heart racing, hands shaking, feeling of suffocation, headache, fearfulness, nausea (occasionally), coughing, stuffed nose (but not a cold), dry mouth, and recently ringing in the ear. They last all day until later in the afternoon. She went to the ER a couple of times and they determined it wasn't the heart or the lung after a whole bunch of tests. Her doctor thinks it might be high anxiety but he's not sure. He gave her plenty of anti-depressant and sleep-aid medication but they don't always work. She no longer goes to sleep naturally. She has a really hard time falling asleep even with all these medications. She has early onset dementia. Could dementia be causing all these symptoms or could it be something else? Anyone has any idea?