typical symptoms which correspond with ADD/ADHD refer to concentration (e.g. get easily distracted from small events/noise/movements, difficulties to focus and stay on one topic) and a broad range of cognitive functions (e.g. memory, kinetic (unrest), sensory filtering - which is where the same comes from, if the filtering and processing of information is not impaired, one has no 'deficit' in attention and hence no ADD/ADHD). If you feel that aspects of those are the case in your daily life, you can ask for getting tested for ADD/ADHD, that you 'know' the medication would help you is of no importance for the diagnosis and cannot act as 'proof' for i disease (but as a hint).
There are other diseases in which case ritalin etc. have a positive impact for some, e.g. depression or hypothyroidism and most importantly, the medication for ADD/ADHD very often act as nootropic ('cognition enhancer') for individuals without any persistent symptoms/illness. As such they can achieve longer working hours, experience concentration increase, feel more energetic etc. The aspect that you wrote "Like everything in my life gets in order" could point to a 'nonstandard attention' in which case you should inform about it and discuss it with a professional. That you mention socializing can also point to attention problems, but might also stem from anxiety-related issues.
When you have problems motivating this should be clearly distinguished from 'laziness'. I think the negative frame of laziness obfuscates that there are different degrees, and whenever they are negatively influencing the quality of life it should be analyzed what the cause actually is and not ignored. If laziness is not 'chosen' e.g. 'being lazy is more comfortable and one sees no reason to act upon something' but laziness is an 'enemy' so that one feels inable to be 'not lazy' though they know their 'laziness' will cause problems and difficulties for them, this should be discussed with a healthcare professional. An inability to change behavior and resulting suffering should be taken seriously.
Altogether, noone can give you a diagnosis without the proper testing and hence you should focus on your 'sober' difficulties and compare them to a 'default' - which means a state you can feel satisfied with. When you identify aspects of ADD/ADHD impacting your life, go to a doctor and describe these problems and state that you would like to get tested or try out new approaches to identify if there is an underlying cause for the problems in your daily life. That you know the medication helps is not good to mention, as any signs for substance abuse will often disqualify for treatment with ritalin etc. (even if the substance use only happened to compensate the problems which were caused by the disease; which sometimes leaves patients without treatments who'd need it)
