temperature was 97.9°F; had some vibrating from the top of her neck into her head; she thought she had chills; Temperature was 98°F; Had a tiny bit of throbbing/her head was throbbing; shaking with left hand,/shaking really bad/ whole head was shaking/like the left side was pulsating and had shakiness/She felt her head shaking; had some heaviness on left side of head; This spontaneous case was reported by a consumer and describes the occurrence of TREMOR (shaking with left hand,/shaking really bad/ whole head was shaking/like the left side was pulsating and had shakiness/She felt her head shaking), HEAD DISCOMFORT (had some heaviness on left side of head), TREMOR (had some vibrating from the top of her neck into her head), CHILLS (she thought she had chills) and PYREXIA (Temperature was 98°F) in a 61-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 019B21A and 010A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Occipital neuralgia (Received a blocker for that and it went away). Concomitant products included FLUTICASONE PROPIONATE, SALMETEROL XINAFOATE (FLUTICASONE + SALMETEROL) and ALBUTEROL SULFATE for an unknown indication.   On 27-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 27-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 27-Mar-2021, the patient experienced HEAD DISCOMFORT (had some heaviness on left side of head). On 28-Mar-2021, the patient experienced TREMOR (shaking with left hand,/shaking really bad/ whole head was shaking/like the left side was pulsating and had shakiness/She felt her head shaking), CHILLS (she thought she had chills), PYREXIA (Temperature was 98°F) and HEADACHE (Had a tiny bit of throbbing/her head was throbbing). On 30-Mar-2021, the patient experienced TREMOR (had some vibrating from the top of her neck into her head). On 31-Mar-2021, the patient experienced PYREXIA (temperature was 97.9°F). On 28-Mar-2021, TREMOR (shaking with left hand,/shaking really bad/ whole head was shaking/like the left side was pulsating and had shakiness/She felt her head shaking) had resolved. At the time of the report, HEAD DISCOMFORT (had some heaviness on left side of head), TREMOR (had some vibrating from the top of her neck into her head), CHILLS (she thought she had chills), PYREXIA (Temperature was 98°F), HEADACHE (Had a tiny bit of throbbing/her head was throbbing) and PYREXIA (temperature was 97.9°F) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 28-Mar-2021, Body temperature: 98 (Inconclusive) 98 degree F. On 31-Mar-2021, Body temperature: 97.9 (Inconclusive) 97.9 degree F.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Past Medical History: in early 2020 she had physical therapy for symptoms that happened in that area, left side of head and neck, behind the ear.Diagnosed with occipital neuralgia.  Action taken with mRNA-1273  in response to the events were not applicable.   This case was linked to US-MODERNATX, INC.-MOD-2021-063905 (E2B Linked Report).   Most recent FOLLOW-UP information incorporated above includes: On 31-Mar-2021: Added concomitant products.; Sender's Comments:  US-MODERNATX, INC.-MOD-2021-063905:Crosslinked with first dose