 [ Symptoms ] possible chronic fatigue misdiagnosis constantly exhausted and unintentional weight loss of about 11lbs in 5 weeks  i have been diagnosed with chronic fatigue syndrome after a whole host of tests were done i do not actually think that i have cfs as i do not experience any cognitive muscle problems etc  i only suffer from debilitating fatigue  since my discharge i have lost weight rapidly 11lbs in 5 weeks which for a 20yr old female who was about 130lbs to begin with is quite significant  this combined with the fact that my only cfs symptom is fatigue makes me think that i have been misdiagnosed [ Disease ] hi mostly there just called brain tumors but have a read through this its from nih gov tumors can occur at any age but many types are most common in a certain age group in adults gliomas and meningiomas are the most common gliomas come from glial cells such as astrocytes oligodendrocytes and ependymal cells gliomas are divided into three types astrocytic tumors include astrocytomas can be noncancerous anaplastic astrocytomas and glioblastomas oligodendroglial tumors some primary brain tumors are made up of both astrocytic and oligodendrocytic tumors these are called mixed gliomas glioblastomas are the most aggressive type of primary brain tumor meningiomas and schwannomas are two other types of brain tumors these tumors occur most often between ages 40 and 70 are usually noncancerous but can still cause serious complications and death from their size or location some are cancerous and aggressive other primary brain tumors in adults are rare these include ependymomas craniopharyngiomas pituitary tumors primary central nervous system   cns lymphoma pineal gland tumors primary germ cell tumors of the brain hope its of some help for you good luck