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One possibility is fibromyalgia. Apart from fibromyalgia multiple joint pain is seen in hypothyroidism, low Vitamin D levels, Low Vit B12 levels, anemia, Hasimotos thyroiditis, gout (can sometimes cause multiple joint pain), rheumatoid arthritis, osteoarthritis, SLE, electrolyte disturbance particularly those involving calcium and magnesium, parathyroid gland problems, chondrocalcinosis and chronic fatigue syndrome. In females, menopause or menopause like condition caused by PCOD is often associated with Vit D and calcium disturbances and hormonal disturbances causing multiple joint pain. Al these can make you fatigued and tired too. Chronic fatigue syndrome can also cause visual symptoms. Since you have multiple lymphnodes and joint pain, rheumatoid arthritis should be ruled out.
The best thing would be to consult a general practitioner or PCP and try and assess what is the cause of your problem. Then proper referral for concerned specialist can take things further and get you proper treatment. Take care!