Hello It is a very delicate question that you got fungal infection from one girl and also responded very well to anti fungus treatment . Since this is 4th days after initial infection and it is very difficult to establish , which type of fungus you got from your partner? Only two type of fungus infection are most dangerous as related for HIV infection , these are: Pneumocystitis jirovecii pneumonia , usually in this condition lungs get infection. 2nd one is cryptococcus ( cryptococcal ) , in this patients presents with increased intracranial pressure ( headache, altered mental status, visual problem ) and fever. You mentioned in your query that there is only fungus ingection on penis and that too cured with anti fungus treatment , so need not to worry at all. But I recommend you please get in p24 nucleic acid amplification test after 2 weeks of initial infection ( contact with girl ). Till wait any symptoms , if any report to a physician and get his opinion.