connective tissue disorder symptoms
However, when a person has mixed connective tissue disorder, the symptoms aren't as severe or as widespread as they would be if the person has lupus, scleroderma, rheumatoid arthritis or other rheumatic disorder. This condition has many symptoms, including: 1  Pain in two or more joints. 2  Almost all persons with mixed connective tissue disease have this symptom. 3  Three out of four persons with the condition have arthritis and may have the swollen, deformed joints of rheumatoid arthritis. 4  Raynaud's phenomenon.