Hello everyone . I finally got my answer to my head sensations neck problems bad vertabrae . But again im still here panicking over hives and weird head sensation . Fearing that the hives are a sign of something sinister . I.e brain tumor/cancer. I have been off celexa for 2-3 weeks. Dr thought it was caused by celexa the 1st time but they r back nowhere near as bad . I ate coconut both times but I have always loved coconut and ate it . Could the celexa still be causing this ? I've never heard of suddenly becoming allergic to something .... help advice please and thank you.