in my 50 plus year life I'm sure I've been bitten by ticks many many times , now we have turkey mites , chiggers , seemingly new varieties of ticks . Anyway was DEADLY sick for week starting last holiday weekend . Severe Severe exhaustion, body aches , night sweats , chills, fainted once . ended up in the ER , White blood count was elevated , dehydration . infection . I think I carried a low grade fever with terrible lethargy for 6 days . Was bitten by a common tick 2 days before it started . Still feel about 75 % 8 days after the illness started . So dont take this stuff lightly .