She had all the problems that everyone has but it was really severe; leg lump/subcutaneous fat lobule that created a tumor like lump in her inner right thigh; was feeling terrible; base of her spine still hurts; started having chest pains; got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible; got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION COMPLICATION (She had all the problems that everyone has but it was really severe), SKIN MASS (leg lump/subcutaneous fat lobule that created a tumor like lump in her inner right thigh), FEELING ABNORMAL (was feeling terrible), INFLAMMATION (got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible) and SPINAL PAIN (base of her spine still hurts) in a 45-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 038C21A and 039B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 15-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 13-May-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 19-Jun-2021, the patient experienced INFLAMMATION (got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible). On an unknown date, the patient experienced VACCINATION COMPLICATION (She had all the problems that everyone has but it was really severe), SKIN MASS (leg lump/subcutaneous fat lobule that created a tumor like lump in her inner right thigh), FEELING ABNORMAL (was feeling terrible), SPINAL PAIN (base of her spine still hurts), CHEST PAIN (started having chest pains) and MOBILITY DECREASED (got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible). At the time of the report, VACCINATION COMPLICATION (She had all the problems that everyone has but it was really severe), SKIN MASS (leg lump/subcutaneous fat lobule that created a tumor like lump in her inner right thigh), FEELING ABNORMAL (was feeling terrible), INFLAMMATION (got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible), SPINAL PAIN (base of her spine still hurts), CHEST PAIN (started having chest pains) and MOBILITY DECREASED (got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Blood test: normal (normal) normal. On an unknown date, Ultrasound scan: normal (normal) normal. On an unknown date, X-ray: normal (normal) normal.         Concomitant medication was not provided  Patient stated she had all the problems that everyone has but it was really severe, she was feeling terrible. On 19-Jun-2021, 5 weeks later, she got the same inflammation and it hurt so bad she could not sit down or bend over, it was terrible. This went on for 12 days. She got a leg lump as well, her doctor said it is a subcutaneous fat lobule that created a tumor like lump in her inner right thigh. It was extremely terrifying. She thought at first it might be a bug bite but it got bigger and would not go away, she waited 2 weeks for it to go away and then went to the ER they said it was cancer or something. The base of her spine still hurts, the inflammation is not as bad but it's been 2 months later and she still has a little bit of pain in the base of her spine, she had not had this before. ER did all this tests, an ultrasound and an X-ray, everything came back normal, no one can explain it. Now the leg lump has slowly gone down but it's still there, she's still having pain when she sits down and also she started having chest pains.  Treatment information was not reported   This case was linked to MOD-2021-290987 (Patient Link).