After contracting hiv, do you always have fever like symptoms? What are some other symptoms? And how ofter are there no symptoms at all?

Not always. Only 30% of people contracting HIV will have any symptoms. Other symptoms include diarrhea, lymph gland swelling, night sweats, fatigue and possible rash on trunk/arms/back.
Almost always. Over 90% of patients who contract HIV have symptoms. Fever is probably the most common. Patients also frequently have enlarged lymph nodes (swollen glands), sore throat, rash, tiny sores in their mouth or throat, or genital area, headache, muscle and joint pains, diarrhea, loss of appetite, and weight loss. If you are worried, get tested!