I accidentally hit my front tooth hard with a big spoon.having weird sensation in teeth.should i be worried in future? can it damage tooth in anyway??

Possibly: You will need to watch for symptoms. If this is a very recent event (within a few hours) give it a day or two. Beyond that point any discomfort in the area should be checked out by a Dentist. Typically the initial shock of the trauma will wear off within hours unless permanent damage has been done.

Trauma: Trauma such as this an crack or break a tooth profiling in a tooth. It can also stress the nerve in the tooth. If your tooth becomes sensitive to biting,cold, or hot things, or feels loose or your bite has changed, then see a dentist and get the tooth checked.

Trauma: You should have the tooth evaluated by a dentist. It's unlikely that you will have any permanent damage, but the tooth should be seen and your dentist can discuss how best to monitor this over time. It's also not impossible that you have an unrelated issue that require treatment.

Teeth concussion: Concussed teeth will be tender to touch or bite due to an inflamed and injured periodontal ligament. Try to avoid biting on these teeth, take NSAID OTC and be patient. If symptoms last more than two weeks, you should see your dentist.