Hi, I'm concerned about my 79 year old father. He's been suffering from dizziness and sore eyes for the last couple of years. He has been to the doctor numerous times and had virtually every test imaginable but they all come back negative. He is on blood pressure tablets but no other medication. He has also recently developed reddish bites on his abdomen and have spread to his arm. He seems to think they could be bed bugs. He is convincing himself that he is not long for this world. I'd appreciate any ideas you may have as to what these ailments mean.