I understand your concern. Difficulty in concentration if of a recent onset may be due to depression or anxiety as well. However if longstanding then you could think of adhd. The way to find out if you have adult adhd or not is to undergo a detailed evaluation with a psychiatrist to confirm the diagnosis. It is easily manageable with appropriate treatment. Some counselling sessions along with medical help might be useful for you. I would also be more than happy to help you with that if you are looking for online assistance. My clinic is at OMR chennai. You can directly consult with me through Practo as needed. Online chat consultation is also available.