She had a sore arm for several days; Feeling heat/ Heat sessions last longer up to 12 hours a day, are hotter/ Feet are soaking wet/ Hands are actually cold/ Neck and inside elbows are hot; This spontaneous case was reported by a patient and describes the occurrence of PAIN IN EXTREMITY (She had a sore arm for several days) and FEELING OF BODY TEMPERATURE CHANGE (Feeling heat/ Heat sessions last longer up to 12 hours a day, are hotter/ Feet are soaking wet/ Hands are actually cold/ Neck and inside elbows are hot) in a 59-year-old female patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (batch no. AS7167B) for COVID-19 prophylaxis.     Concurrent medical conditions included Ovarian cyst and Menopause (Stopped menstruating 3 years ago, way before vaccination). Concomitant products included PROGESTERONE and ESTRADIOL for an unknown indication.    On 12-Dec-2022, the patient received fifth dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Intramuscular) 1 dosage form. In December 2022, the patient experienced PAIN IN EXTREMITY (She had a sore arm for several days) and FEELING OF BODY TEMPERATURE CHANGE (Feeling heat/ Heat sessions last longer up to 12 hours a day, are hotter/ Feet are soaking wet/ Hands are actually cold/ Neck and inside elbows are hot). At the time of the report, PAIN IN EXTREMITY (She had a sore arm for several days) and FEELING OF BODY TEMPERATURE CHANGE (Feeling heat/ Heat sessions last longer up to 12 hours a day, are hotter/ Feet are soaking wet/ Hands are actually cold/ Neck and inside elbows are hot) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 08-Feb-2023, Computerised tomogram: Found ovarian cyst which was said to be for many years prior to vaccination. On an unknown date, Female sex hormone level: Hormone levels were within normal. On an unknown date, Laboratory test: All tests were normal.     For mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Intramuscular), the reporter did not provide any causality assessments.   On 01-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine). On 29-Jan-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine). On 25-Oct-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine). On 22-Jul-2022, received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine).  After the Bivalent booster (5th shot), patient had a sore arm for several days.  Around 20-Dec-2022, a week after the Bivalent shot patient started feeling heat.  Currently on 09-Feb-2023, the heat sessions last longer up to 12 hours a day and they were hotter. Patient's feet were soaking wet, hands were not hot or wet but were actually cold. Patient's neck and inside elbows were hot. Patient had been using wash cloths to relieve herself. Doctors do not know what was wrong with the patient. All tests were normal. All doctors were blaming it on the vaccine.  Patient never experienced anything like this. Hormone levels were within normal. Patient was asking if anyone else experienced anything like this.  No treatment medication was reported.   This case was linked to (Patient Link).