A guitar amplifier (or guitar amp) is an electronic amplifier that amplifies the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through a loudspeaker, which is typically housed in a wooden cabinet.
WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms headache, pain or discomfort and watery eyes including Acute sinusitis, Nearsightedness, and Chronic sinusitis. There are 86 conditions associated with headache, pain or discomfort and watery eyes. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
Typically, both allergies and infections cause a severe redness or 'meaty' appearance of the conjunctiva. This is caused by edema or fluid build-up and an increase in the size and number of blood vessels within the tissue. Either allergies or infections cause the eye to discharge or 'weep.'. The consistency of the discharge often helps determine its cause. Usually infections caused by bacteria, fungi, etc., create a thick yellow or greenish eye discharge. The eyelids may actually stick together when held shut.