What Causes Headaches, Blurriness In Eyes And Fluctuating BP In A 80 Year Old?

My 82 yr. old Mom, who is relatively active despite her COPD, has been experiencing the following symptoms for approximately 10 years, without any real help from the numerous drs. she has seen. Her symptoms are getting worse. Symptoms include: headache, wavy lines in front of her eyes, blurry eyes, burning in eyes, fluctuating blood pressure (sometimes very high), tingling in her face (sometimes throughout her body), fatigue, weakness, dizziness. Heart disease runs in her family. She is on numerous medications for this but none help. She is deteriorating because of these symptoms and we don t know what direction to go in. No one seems to go the extra step to help her find out why she has this debilitating problem. We would appreciate it if you could direct us as to where to go from here. Thank you.