Okay I am ready and I am posting my answer here.
To be honest with you - you do have neurological manifestations that can be seen in a case of ALS. But the absence of strong family history is a favourable point for you (great aunt having or had als is not a strong family history, if parents or sibling having or had als then it is a strong family history, it seems your great aunt had non-hereditary type of als), since you are around age 28 ALS is very uncommon around this age, if family history is positive then one may get ALS around this young age, since family history is negative in your case it considerably reduces the possibility of ALS in you because of your young age.
There are neurological conditions that can mimic ALS - for example a type of motor neuropathy called as MMNCB (Multifocal motor neuropathy with conduction block) can present similar to ALS. Certain structural problems in the craniocervical junction (junction of lower brain stem and upper cervical spinal cord) can also cause symptoms resembling ALS. There could be certain structural problems in the motor areas of the brain too that can mimic ALS. There are certain viral illnesses that can cause ALS like features.
So your symptoms do not automatically imply this is ALS. This needs to be clinically evaluated further. Please try to see a neurologist asap so that you can receive a thorough neurological examination followed by certain relevant investigations like an EMG/Nerve conduction test (a nerve & muscle test), and an MRI scan of the craniocervical junction & brain, and any other relevant tests as necessary and then appropriately treated depending upon the test results.
Once again I reassure you there are conditions that can mimic ALS, so please not to suspect the worst by assuming it is already ALS, this could be some ALS mimicker too; please try to see a neurologist and the evaluation as discussed above asap.
Age factor & no family history are in favour of you, and I wish you all the very best with your tests!
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