Hi, I am a 19 year old female, i am a collegiate athlete who have been suffering from swollen/enlarged lymph nodes for about a year and a half now. I have had other symptoms as well as these. Some include: Night Sweats, muscle weakness-especially in the legs [if i walk up a flight of stairs it feels like i just ran two miles], dizziness, headaches, low blood pressure, my balance is off-i stand up and have to grab onto something because i feel like im gonna fall over, weight loss, loss of appetite, etc. I have gone to the doctor and he has no answers, i dont have mono and dont have any other viruses. They just gave me steroids and sent me home. What do i need to do?