Sometimes when you just have too much on your mind, are worried, depressed, or haven't been sleeping well, you can find yourself having trouble concentrating or remembering things. That's understandable. But if this has been going on for some time, especially if it is interfering with your daily life, you need to have it checked out. If you are older, you may be worried about Alzheimer's or some other type of dementia. Your doctor can help you sort through this. Make sure you tell your doctor if you have had any head trauma as this may also cause you to be foggy.
While the list below can be considered as a guide to educate yourself about these conditions, this is not a substitute for a diagnosis from a health care provider. There are many other medical conditions that also can be associated with your symptoms and signs. Here are a number of those from MedicineNet:
Depression is an illness that involves the body, mood, and thoughts and affects the way a person eats and sleeps, the way one feels about oneself, and the way one thinks about things. The principal types of depression are major depression, dysthymia, and bipolar disease (also called manic-depressive disease).
Concussion is a short-lived loss of brain function that is due to head trauma. There are two types of concussion, simple and complex. Symptoms of concussion include headache, nausea, dizziness, dazed feeling, irritability, visual symptoms. Physical signs include poor concentration, emotional changes, slurred speech, and personality changes. Concussion is diagnosed with physical examination and testing. Treatment for concussion in general are treatment for control of the symptoms, and time.
When sleepiness interferes with daily routines and activities, or reduces the ability to function, it is called "problem sleepiness." A person can have problem sleepiness without realizing it. Symptoms of problem sleepiness include: consistently don't get enough sleep, or poor quality sleep, fall asleep while driving, struggle to stay awake when inactive (like watching TV or reading), have difficulty paying attention or concentrating at work, school, or home, have poor performance problems at work or school, have difficulty remembering things, have slowed responses, have difficulty controlling your emotions, and/or if you have to take naps on most days.
Lyme disease is a bacterial illness, which is spread by ticks when they bite the skin. Initially the disease affects the skin causing a reddish rash associated with flu-like symptoms. It takes weeks to months after the initial redness of the skin for its effects to spread throughout the body. Lyme disease can be treated with antibiotics. Lyme disease can be prevented by using tick avoidance techniques.
At MedicineNet, we believe it is important to take charge of your health through measures such as a living healthy lifestyle, practicing preventative medicine, following a nutrition plan, and getting regular exercise. Understanding your symptoms and signs and educating yourself about health conditions are also a part of living your healthiest life. The links above will provide you with more detailed information on these medical conditions to help you inform yourself about the causes and available treatments for these conditions.