Tingling/Intermittent tingling in fingers (right and left hand)/More in the feet that remain the same; Headache; Numbness in both toes,legs/Numbness/feels numb from calf to toes all the way feet; This spontaneous case was reported by a consumer and describes the occurrence of HYPOAESTHESIA (Numbness in both toes,legs/Numbness/feels numb from calf to toes all the way feet), PARAESTHESIA (Tingling/Intermittent tingling in fingers (right and left hand)/More in the feet that remain the same) and HEADACHE (Headache) in a 70-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 065K21A, 032L20A and 026L20A) for COVID-19 vaccination.     Previously administered products included for Product used for unknown indication: Flu shot (Flu shot in right arm) on 16-Aug-2021. Past adverse reactions to the above products included No adverse event with Flu shot. Concurrent medical conditions included CLL (Patient stated Leukemia diagnosis goes back at least a year or two). Concomitant products included ACALABRUTINIB (CALQUENCE) from 07-Apr-2022 to an unknown date for CLL, ZINC and VITAMIN C [ASCORBIC ACID] for an unknown indication.   On 18-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 02-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 16-Aug-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 13-Apr-2022, received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In April 2022, the patient experienced HYPOAESTHESIA (Numbness in both toes,legs/Numbness/feels numb from calf to toes all the way feet) and HEADACHE (Headache). On 18-Apr-2022,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced PARAESTHESIA (Tingling/Intermittent tingling in fingers (right and left hand)/More in the feet that remain the same). The patient was treated with PARACETAMOL (TYLENOL [PARACETAMOL]) at an unspecified dose and frequency. At the time of the report, HYPOAESTHESIA (Numbness in both toes,legs/Numbness/feels numb from calf to toes all the way feet) and PARAESTHESIA (Tingling/Intermittent tingling in fingers (right and left hand)/More in the feet that remain the same) had not resolved and HEADACHE (Headache) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In March 2022, White blood cell count: big jump in while blood cells (High) Big jump in While Blood Cells. On an unknown date, Heart rate: normal range (normal) Pulse within normal range. On an unknown date, Oxygen saturation: normal range (normal) Oxygen within normal range.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Concomitant medications reported also included blood pressure medicine, high cholesterol medicine and Glameron.  The patient took Moderna 2nd booster on 13-Apr-2022. The patient had numbness in both their toes/legs. The patient went to see an oncologist who referred the patient to a neurologist. The Neurologist felt it might had been the vaccine. The Neurologist said usually after about two weeks it would disappear.   The patient experienced tingling which started on Monday (18-Apr-2022). Over the weekend the patient had a headache. On Monday it started with the feet where it felt numb from calf to toes all the way feet. Intermittent tingling in fingers (right and left hand) and more in the feet that remain the same. The physician said if it got worse then go to the hospital.  The patient had a medical history which included CLL, a type of Leukemia and started taking (Calquence) on the 07-April but had since stopped taking it until follow-up with oncologist. The patient stated Leukemia diagnosis goes back at least a year or two (but could not give specifics). The oncologist was taking blood tests up until this time (for WBC) but then there was a big jump in While Blood Cells in the middle of Mar-2022.  The patient received the flu-shot on the same day after their first booster.  The patient had no history of COVID. The patient took their pulse and oxygen, and they were within normal range. Reportedly, the patient was going to speak to their oncologist tomorrow and would speak to the neurologist.   This case was linked to MOD-2022-546680, MOD-2022-546692 (Patient Link).