“…The symptoms, diseases, and disorders of each patient with HFI were extracted individually. These conditions are listed in descending order of prevalence within the studies: Headaches were found in 51 patients (Elliott, et al, 2014; Andrews, 1942; Bracanovic et al, 2020; CARR, 1936; Chen & Murthy, 2012; Dann, 1951; Dumas et al, 1994; Harding, 1949; Khansare, 2014; Li et al, 2017; Lieberman & Ferry, 1974; Moore & Carr, 1952; NOTKIN, J., 1953; Priyambada et al, 2017; Ramchandren & Liebeskind, 2007; Sacher et al, 1985; Schmitt, 1976; Suárez Alvarez et al, 2004; Talarico et al, 2008; Willison et al, 1993; Yang et al, 2018); Obesity was found in 36 patients (Devriendt et al, 2005; Harding, 1949; She & Szakacs, 2004; Sommers, 1953; Torrealba‐Acosta & Mandel, 2020); Vertigo/Dizziness symptoms were found in 33 patients (Harding, 1949; Hasegawa et al, 1983; Moore & Carr, 1952; NOTKIN, J., 1953; Prakash et al, 2011; Talarico et al, 2008); Cognitive decline/Memory loss/Dementia were found in 30 patients (CARR, 1936; de Zubicaray et al, 1997; Devriendt et al, 2005; Gilbert et al, 2012; Khansare, 2014; Li et al, 2017; NOTKIN, J., 1953; Priyambada et al, 2017; Sacher et al, 1985; Waclawik, 2006); Psychological diagnosis were further categorized by specific diagnosis, depression was found in 27 patients (Harding, 1949; Khansare, 2014; NOTKIN, J., 1953; Otter et al, 2012; Smith & Hemphill, 1956; Torrealba‐Acosta & Mandel, 2020), unspecified psychological disorders were found in 17 patients (Devriendt et al, 2005; NOTKIN, J., 1953; Schmitt,…”