Pain at injection site; Fever; chill; Headache; felt like an electroshock feeling in her knee, followed by pulsating every 3 seconds; Swelling of legs; muscle pain,Excrutiating muscle pain below waist; Prickling in legs; Burning in legs; muscle pain in legs; Numbness in leg; Could not walk or move her legs; Pulsing sensation went down her leg to her hip; Cramps in legs; pinching,feeling of being cut with a knife in my legs; swollenness and heavy leg (no physical swelling was observed); This spontaneous case was reported by a consumer and describes the occurrence of LIMB DISCOMFORT (pinching,feeling of being cut with a knife in my legs), SWELLING (swollenness and heavy leg (no physical swelling was observed)), PARAESTHESIA (Prickling in legs), BURNING SENSATION (Burning in legs) and MUSCLE SPASMS (Cramps in legs) in a 49-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 001A21A and 207A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Asthma since 2005 and Diabetes (Monogenetic Diabetes of the Youth (MODY 2) from birth) since 1971. Concomitant products included MOMETASONE FUROATE (ASMANEX) for Asthma.   On 11-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 07-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 08-Apr-2021, the patient experienced VACCINATION SITE PAIN (Pain at injection site), PYREXIA (Fever), CHILLS (chill) and HEADACHE (Headache). In April 2021, the patient experienced PARAESTHESIA (Prickling in legs), BURNING SENSATION (Burning in legs), PAIN IN EXTREMITY (muscle pain in legs), HYPOAESTHESIA (Numbness in leg), ELECTRIC SHOCK SENSATION (felt like an electroshock feeling in her knee, followed by pulsating every 3 seconds), PERIPHERAL SWELLING (Swelling of legs) and MYALGIA (muscle pain,Excrutiating muscle pain below waist). In 2021, the patient experienced LIMB DISCOMFORT (pinching,feeling of being cut with a knife in my legs), SWELLING (swollenness and heavy leg (no physical swelling was observed)), MUSCLE SPASMS (Cramps in legs), GAIT INABILITY (Could not walk or move her legs) and FEELING ABNORMAL (Pulsing sensation went down her leg to her hip). In April 2021, VACCINATION SITE PAIN (Pain at injection site), PYREXIA (Fever), CHILLS (chill) and HEADACHE (Headache) had resolved. At the time of the report, LIMB DISCOMFORT (pinching,feeling of being cut with a knife in my legs), SWELLING (swollenness and heavy leg (no physical swelling was observed)), PARAESTHESIA (Prickling in legs), BURNING SENSATION (Burning in legs), MUSCLE SPASMS (Cramps in legs) and PAIN IN EXTREMITY (muscle pain in legs) had not resolved, HYPOAESTHESIA (Numbness in leg), GAIT INABILITY (Could not walk or move her legs), FEELING ABNORMAL (Pulsing sensation went down her leg to her hip), ELECTRIC SHOCK SENSATION (felt like an electroshock feeling in her knee, followed by pulsating every 3 seconds) and PERIPHERAL SWELLING (Swelling of legs) outcome was unknown and MYALGIA (muscle pain,Excrutiating muscle pain below waist) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 29-Apr-2021, Blood test: normal (normal) normal. On an unknown date, Body temperature: 102 (High) high.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   The suspect drug had administered on 07-April-2021 at 04:20 pm. Patient was managed the symptoms by taking magnesium, exercising, biking, swimming and massaging. Treatment also included muscle relaxer. Events included Pulsating spread to right leg, Pulsating in both legs disappeared. After normal bloodwork, physician recommended an MRI, which yet to get. Still had symptoms 6 months after the shot. Patient guess anti-vaxers would, but had nothing to do with them.   Most recent FOLLOW-UP information incorporated above includes: On 21-Oct-2021: The follow up document was received and New reporter added, patient height,weight, race, lab data, vaccination site,  adverse events, concomitant, treatment and vaccine facility information is added.