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The Falciparum type of malaria is not a recurrent type as it is in case of Vivax malaria
.So either you are living in a area that is prone to mosquitoes spreading Falciparum malaria
or if it is not documented then the recurrent malaria can be due to a combined vivax along with falciparum .Also the evening temperature of 99.4 F and weak feeling can be due to the effect of Typhoid infection which is now a days commonly seen associated with malaria.Please get investigated and do a Rapid malaria antigen to find the type of malaria and also do a Widal test
for Typhoid.As far as Cerebral malaria
is concerned the signs and symptoms are high grade fever;chills and rigors;vomiting
and severe headache;also the intensity of all symptoms will be severe.Please get investigated and treated and you should be fine.