Shortness of breath/Saturday was the peak I was gasping for air; Chest pain; left underarm pain; left sided neck pain; Dizzy; weak; Headache; Nausea; fatigue; This spontaneous case was reported by a consumer and describes the occurrence of DYSPNOEA (Shortness of breath/Saturday was the peak I was gasping for air), CHEST PAIN (Chest pain), PAIN IN EXTREMITY (left underarm pain), NECK PAIN (left sided neck pain) and DIZZINESS (Dizzy) in a 43-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 939905, 011A21A and 006B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Hypersensitivity reaction, Asthma (Worse after booster) since 1994, Hypertension since 2012, Diabetes since 2012, Drug allergy (Lisinopril), Drug allergy (Codeine), Hypercholesteremia since 2012 and Anxiety. Concomitant products included SALBUTAMOL (ALBUTEROL HFA) for Asthma, METFORMIN HYDROCHLORIDE (METFORMIN ER) for Diabetes, ROSUVASTATIN for Hypercholesterolaemia, AMLODIPINE for Hypertension, ALPRAZOLAM (XANAX), BUDESONIDE, FORMOTEROL FUMARATE (SYMBICORT), TIOTROPIUM BROMIDE MONOHYDRATE (SPIRIVA) and IRON for an unknown indication.   On 05-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 02-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 29-Oct-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. In October 2021, the patient experienced PAIN IN EXTREMITY (left underarm pain), NECK PAIN (left sided neck pain), DIZZINESS (Dizzy), ASTHENIA (weak), HEADACHE (Headache), NAUSEA (Nausea) and FATIGUE (fatigue). On 29-Oct-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced DYSPNOEA (Shortness of breath/Saturday was the peak I was gasping for air) and CHEST PAIN (Chest pain). The patient was treated with ACETYLSALICYLIC ACID (ASPIRIN (E.C.)) at a dose of 1 dosage form and LORATADINE, PSEUDOEPHEDRINE HYDROCHLORIDE (BENADRYL 24 D) at a dose of 1 dosage form. At the time of the report, DYSPNOEA (Shortness of breath/Saturday was the peak I was gasping for air), CHEST PAIN (Chest pain), PAIN IN EXTREMITY (left underarm pain), NECK PAIN (left sided neck pain), DIZZINESS (Dizzy), ASTHENIA (weak), HEADACHE (Headache), NAUSEA (Nausea) and FATIGUE (fatigue) had not resolved.            Action taken with mRNA-1273 in response to the event was not applicable. Patient saw her cardiologist and went to ER. thought of blood clot, tested lung for blood clot, negative.   This case was linked to MOD-2021-370271 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 01-Nov-2021: Significant Follow up : patient details, medical history, concomitant and treatment drug information, suspect drug information updated and new events added. On 03-Nov-2021: Follow-up received includes contact info updated, updated race and ethnicity allergy, concurrent condition, concomitant medications and added events of fatigue, dizziness, nausea and weakness. On 04-Nov-2021: Non Significant follow up On 04-Nov-2021: Non significant follow up On 05-Nov-2021: Follow up received, medical information updated in inarrative.